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• How to Write a Literature Review | Guide, Examples, & Templates

How to Write a Literature Review | Guide, Examples, & Templates

Published on January 2, 2023 by Shona McCombes . Revised on September 11, 2023.

What is a literature review? A literature review is a survey of scholarly sources on a specific topic. It provides an overview of current knowledge, allowing you to identify relevant theories, methods, and gaps in the existing research that you can later apply to your paper, thesis, or dissertation topic .

There are five key steps to writing a literature review:

• Search for relevant literature
• Evaluate sources
• Identify themes, debates, and gaps
• Outline the structure
• Write your literature review

A good literature review doesn’t just summarize sources—it analyzes, synthesizes , and critically evaluates to give a clear picture of the state of knowledge on the subject.

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Table of contents

What is the purpose of a literature review, examples of literature reviews, step 1 – search for relevant literature, step 2 – evaluate and select sources, step 3 – identify themes, debates, and gaps, step 4 – outline your literature review’s structure, step 5 – write your literature review, free lecture slides, other interesting articles, frequently asked questions, introduction.

• Quick Run-through
• Step 1 & 2

When you write a thesis , dissertation , or research paper , you will likely have to conduct a literature review to situate your research within existing knowledge. The literature review gives you a chance to:

• Demonstrate your familiarity with the topic and its scholarly context
• Develop a theoretical framework and methodology for your research
• Position your work in relation to other researchers and theorists
• Show how your research addresses a gap or contributes to a debate
• Evaluate the current state of research and demonstrate your knowledge of the scholarly debates around your topic.

Writing literature reviews is a particularly important skill if you want to apply for graduate school or pursue a career in research. We’ve written a step-by-step guide that you can follow below.

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Writing literature reviews can be quite challenging! A good starting point could be to look at some examples, depending on what kind of literature review you’d like to write.

• Example literature review #1: “Why Do People Migrate? A Review of the Theoretical Literature” ( Theoretical literature review about the development of economic migration theory from the 1950s to today.)
• Example literature review #2: “Literature review as a research methodology: An overview and guidelines” ( Methodological literature review about interdisciplinary knowledge acquisition and production.)
• Example literature review #3: “The Use of Technology in English Language Learning: A Literature Review” ( Thematic literature review about the effects of technology on language acquisition.)
• Example literature review #4: “Learners’ Listening Comprehension Difficulties in English Language Learning: A Literature Review” ( Chronological literature review about how the concept of listening skills has changed over time.)

You can also check out our templates with literature review examples and sample outlines at the links below.

Download Word doc Download Google doc

Before you begin searching for literature, you need a clearly defined topic .

If you are writing the literature review section of a dissertation or research paper, you will search for literature related to your research problem and questions .

Make a list of keywords

Start by creating a list of keywords related to your research question. Include each of the key concepts or variables you’re interested in, and list any synonyms and related terms. You can add to this list as you discover new keywords in the process of your literature search.

• Social media, Facebook, Instagram, Twitter, Snapchat, TikTok
• Body image, self-perception, self-esteem, mental health
• Generation Z, teenagers, adolescents, youth

Search for relevant sources

Use your keywords to begin searching for sources. Some useful databases to search for journals and articles include:

• Your university’s library catalogue
• Google Scholar
• Project Muse (humanities and social sciences)
• Medline (life sciences and biomedicine)
• EconLit (economics)
• Inspec (physics, engineering and computer science)

You can also use boolean operators to help narrow down your search.

Make sure to read the abstract to find out whether an article is relevant to your question. When you find a useful book or article, you can check the bibliography to find other relevant sources.

You likely won’t be able to read absolutely everything that has been written on your topic, so it will be necessary to evaluate which sources are most relevant to your research question.

For each publication, ask yourself:

• What question or problem is the author addressing?
• What are the key concepts and how are they defined?
• What are the key theories, models, and methods?
• Does the research use established frameworks or take an innovative approach?
• What are the results and conclusions of the study?
• How does the publication relate to other literature in the field? Does it confirm, add to, or challenge established knowledge?
• What are the strengths and weaknesses of the research?

Make sure the sources you use are credible , and make sure you read any landmark studies and major theories in your field of research.

You can use our template to summarize and evaluate sources you’re thinking about using. Click on either button below to download.

Take notes and cite your sources

As you read, you should also begin the writing process. Take notes that you can later incorporate into the text of your literature review.

It is important to keep track of your sources with citations to avoid plagiarism . It can be helpful to make an annotated bibliography , where you compile full citation information and write a paragraph of summary and analysis for each source. This helps you remember what you read and saves time later in the process.

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To begin organizing your literature review’s argument and structure, be sure you understand the connections and relationships between the sources you’ve read. Based on your reading and notes, you can look for:

• Trends and patterns (in theory, method or results): do certain approaches become more or less popular over time?
• Themes: what questions or concepts recur across the literature?
• Debates, conflicts and contradictions: where do sources disagree?
• Pivotal publications: are there any influential theories or studies that changed the direction of the field?
• Gaps: what is missing from the literature? Are there weaknesses that need to be addressed?

This step will help you work out the structure of your literature review and (if applicable) show how your own research will contribute to existing knowledge.

• Most research has focused on young women.
• There is an increasing interest in the visual aspects of social media.
• But there is still a lack of robust research on highly visual platforms like Instagram and Snapchat—this is a gap that you could address in your own research.

There are various approaches to organizing the body of a literature review. Depending on the length of your literature review, you can combine several of these strategies (for example, your overall structure might be thematic, but each theme is discussed chronologically).

Chronological

The simplest approach is to trace the development of the topic over time. However, if you choose this strategy, be careful to avoid simply listing and summarizing sources in order.

Try to analyze patterns, turning points and key debates that have shaped the direction of the field. Give your interpretation of how and why certain developments occurred.

If you have found some recurring central themes, you can organize your literature review into subsections that address different aspects of the topic.

For example, if you are reviewing literature about inequalities in migrant health outcomes, key themes might include healthcare policy, language barriers, cultural attitudes, legal status, and economic access.

Methodological

If you draw your sources from different disciplines or fields that use a variety of research methods , you might want to compare the results and conclusions that emerge from different approaches. For example:

• Look at what results have emerged in qualitative versus quantitative research
• Discuss how the topic has been approached by empirical versus theoretical scholarship
• Divide the literature into sociological, historical, and cultural sources

Theoretical

A literature review is often the foundation for a theoretical framework . You can use it to discuss various theories, models, and definitions of key concepts.

You might argue for the relevance of a specific theoretical approach, or combine various theoretical concepts to create a framework for your research.

Like any other academic text , your literature review should have an introduction , a main body, and a conclusion . What you include in each depends on the objective of your literature review.

The introduction should clearly establish the focus and purpose of the literature review.

Depending on the length of your literature review, you might want to divide the body into subsections. You can use a subheading for each theme, time period, or methodological approach.

As you write, you can follow these tips:

• Summarize and synthesize: give an overview of the main points of each source and combine them into a coherent whole
• Analyze and interpret: don’t just paraphrase other researchers — add your own interpretations where possible, discussing the significance of findings in relation to the literature as a whole
• Critically evaluate: mention the strengths and weaknesses of your sources
• Write in well-structured paragraphs: use transition words and topic sentences to draw connections, comparisons and contrasts

In the conclusion, you should summarize the key findings you have taken from the literature and emphasize their significance.

When you’ve finished writing and revising your literature review, don’t forget to proofread thoroughly before submitting. Not a language expert? Check out Scribbr’s professional proofreading services !

This article has been adapted into lecture slides that you can use to teach your students about writing a literature review.

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If you want to know more about the research process , methodology , research bias , or statistics , make sure to check out some of our other articles with explanations and examples.

• Sampling methods
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• Reproducibility

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• Null hypothesis
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Research bias

• Optimism bias
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• Hawthorne effect
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A literature review is a survey of scholarly sources (such as books, journal articles, and theses) related to a specific topic or research question .

It is often written as part of a thesis, dissertation , or research paper , in order to situate your work in relation to existing knowledge.

There are several reasons to conduct a literature review at the beginning of a research project:

• To familiarize yourself with the current state of knowledge on your topic
• To ensure that you’re not just repeating what others have already done
• To identify gaps in knowledge and unresolved problems that your research can address
• To develop your theoretical framework and methodology
• To provide an overview of the key findings and debates on the topic

Writing the literature review shows your reader how your work relates to existing research and what new insights it will contribute.

The literature review usually comes near the beginning of your thesis or dissertation . After the introduction , it grounds your research in a scholarly field and leads directly to your theoretical framework or methodology .

A literature review is a survey of credible sources on a topic, often used in dissertations , theses, and research papers . Literature reviews give an overview of knowledge on a subject, helping you identify relevant theories and methods, as well as gaps in existing research. Literature reviews are set up similarly to other  academic texts , with an introduction , a main body, and a conclusion .

An  annotated bibliography is a list of  source references that has a short description (called an annotation ) for each of the sources. It is often assigned as part of the research process for a  paper .  

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Determining the Ideal Length: How Long Should Your Literature Review Be?

A literature review is a critical component of academic research, providing a comprehensive overview of existing knowledge on a particular topic. It contextualizes your work within the broader academic conversation, identifies gaps in current research, and demonstrates a clear understanding of your field. The length of a literature review can vary widely depending on several factors, such as the scope of the study, academic level, and the complexity of the research topic. This article offers insights into determining the ideal length for your literature review to ensure it is thorough, relevant, and aligned with academic expectations.

Key Takeaways

• The purpose and scope of your literature review significantly influence its length; it should be long enough to cover key theories and research but concise enough to remain focused.
• Academic level and expectations play a crucial role in determining the length; literature reviews in dissertations will be more extensive than those in undergraduate papers.
• The complexity and novelty of the research topic can necessitate a longer review to adequately cover the existing literature and establish the research's relevance.
• Effective literature sourcing strategies, such as using relevant databases and evaluating source credibility, contribute to a literature review's comprehensive yet precise nature.
• The literature review should balance a coherent narrative flow with critical analysis, ensuring that it not only summarizes existing research but also critiques and contextualizes it.

Conceptualizing the Literature Review

Defining the purpose and scope.

Before diving into the vast sea of existing literature, it's crucial to anchor your research with a clear purpose and well-defined scope. Defining your topic may require an initial review to grasp the full breadth of your subject. This preliminary step is not about exhaustive reading but about identifying the contours of your research landscape.

Consider the following questions to clarify your intentions and set the boundaries of your review:

• What specific research question are you aiming to address?
• Will your literature review be comprehensive or will you focus on a selective examination of sources?
• How does the scope align with your academic level and the expectations of your field?

By answering these questions, you establish a framework that guides your literature sourcing, ensuring relevance and depth. Remember, the scope of your review is not static; it may evolve as you delve deeper into your topic. However, having a clear starting point will help you maintain focus and avoid being overwhelmed by the sheer volume of available literature.

Understanding the Role of Literature in Research

In your quest to comprehend the vast landscape of existing knowledge, the literature review serves as your compass, guiding you through the scholarly terrain. It is the foundation upon which your research is built , providing context, identifying gaps, and highlighting the significance of your study. The literature review not only synthesizes relevant literature but also critically evaluates it, establishing a framework for your research questions and hypotheses.

The role of literature in research extends beyond mere summarization. It involves a meticulous process of selection and analysis, where you:

• Engage with key theories and concepts
• Compare and contrast various studies
• Uncover trends and patterns in research
• Assess the methodological rigor of past work

By delving into the analysis of scientific production and communication , you analyze the main recent contributions made by researchers in the field of academic production and communication. This exploration is crucial for situating your work within the broader academic conversation and for ensuring that your research is informed by the most current and relevant findings.

Setting the Boundaries: Depth versus Breadth

In your quest to craft a literature review that is both comprehensive and focused, you must strike a delicate balance between depth and breadth. Depth ensures that you cover each relevant topic thoroughly, providing a detailed understanding and critical analysis . However, too much detail can lead to an overwhelming amount of information that may obscure the main findings and arguments. On the other hand, breadth allows you to present a wide range of studies and perspectives, but a review that is too broad may lack the necessary focus to offer insightful conclusions.

To navigate this balance, consider the following points:

• Define the scope of your review based on the research question.
• Decide whether your coverage will be selective or exhaustive.
• Determine the inclusion and exclusion criteria for your literature search.

Remember, the goal is to provide an overview that is as informative as it is accessible, ensuring that your literature review makes a meaningful contribution to the field without becoming mired in excessive detail.

Strategies for Effective Literature Sourcing

Identifying relevant databases and resources.

Embarking on a literature review begins with the crucial step of identifying the right databases and resources. Efficiently search for relevant articles by utilizing filters, accessing full-text articles, evaluating sources, managing search results, and using advanced search techniques in academic databases. For instance, databases such as Academic Search Complete, JSTOR, ERIC , Sociological Abstracts, and PsycInfo are indispensable for the humanities and social sciences.

When considering the vast array of information available, it's essential to evaluate the credibility of your sources. This ensures that your literature review is grounded in reliable and authoritative research. Here are some steps to guide you:

• Use database research logs to track your searches.
• Apply Boolean operators to refine search results.
• Look for peer-reviewed journals and grey literature.
• Check for the presence of literature gaps and future research directions.

Remember, the structure of your literature review, whether it's for a Master's thesis or another academic endeavor, will typically include sections like the Abstract, Literature Review, Methodology, Results, and Conclusion. The theoretical framework will guide your research design and analysis, shaping the depth and breadth of the literature you review.

Evaluating the Credibility of Sources

In your quest to construct a robust literature review, the credibility of your sources is paramount. Ensure that each source you consider is reliable and authoritative to support your research effectively. Employ the C.R.A.P. test (Currency, Relevance, Authority, Purpose) to assess the quality of information. Ask yourself: Is the information current? Does it relate directly to your topic? Who is the author, and what is their expertise? What is the purpose of the information?

Consider the following criteria when evaluating sources:

• Accuracy : Verify the facts and data presented. Is the information supported by evidence?
• Authority: Check the author's credentials and the publisher's reputation.
• Objectivity: Determine if the source has a bias or a specific agenda.
• Currency: Ensure the information is up-to-date and relevant.
• Coverage: Evaluate the depth and breadth of the information provided.

Remember, using credible sources not only strengthens your literature review but also establishes you as a more informed writer . Be vigilant and selective to maintain the integrity of your research.

Organizing Literature for Efficient Review

Once you have gathered a substantial number of sources, the next step is to organize them in a way that enhances your understanding and supports the structure of your literature review. As you read sources, themes will emerge that will guide the organization of your review. A practical tool to assist you in this process is the Synthesis Matrix , which allows you to track your notes and observations as you read.

There are several approaches to organizing a literature review, including theoretical, thematic, methodological, and chronological. Each approach serves a different purpose and may suit your research question differently. For instance, a thematic organization groups literature based on common themes, which can be particularly useful when synthesizing research across various studies.

To systematically organize and synthesize knowledge, consider the following steps:

• Identify key themes and concepts from your sources.
• Use a Synthesis Matrix to track themes and connections.
• Choose an organizational structure that aligns with your research objectives.
• Continuously refine the organization as your understanding deepens.

Structuring the Literature Review

Creating a coherent narrative flow.

In crafting your literature review, it is essential to weave a seamless narrative that guides your reader through the research landscape. Begin by clearly defining key terms and terminologies , setting the stage for the discussion that follows. This initial clarity helps in establishing a solid foundation for your arguments.

Organize the selected papers and studies by identifying patterns and developing subtopics . This thematic approach allows you to create a structure that is both logical and compelling. Remember, the goal is to tell a coherent "story" that makes the connections between works clear and meaningful. As you arrange your literature, be prepared to move pieces around to achieve the best fit under different themes or arguments.

Finally, ensure that your narrative is coherent and transitions smoothly from one section to the next. A well-structured literature review not only summarizes research but also critically analyzes and synthesizes the information to provide a comprehensive understanding of the topic. Here are some steps to consider:

• Define key terms and concepts
• Identify patterns and develop subtopics
• Arrange literature to tell a coherent story
• Transition smoothly between sections
• Summarize, analyze, and synthesize findings

Thematic Organization versus Chronological Order

When you embark on structuring your literature review, you are faced with a pivotal decision: whether to organize the material thematically or in chronological order. Thematic organization allows you to cluster studies by concepts or topics, which can be particularly helpful in highlighting the development of theoretical concepts over time or across different contexts. This approach can aid others in understanding complex subjects by breaking them down into more digestible themes.

On the other hand, a chronological structure presents the evolution of scholarship over time. It can be the simplest way to organize literature, as it follows the natural progression of published work, from the earliest studies to the most recent. This method is especially useful when examining a trend or history of a topic, such as the ' history of whaling ', where you can observe how perspectives and methodologies have shifted.

Consider the following points when deciding on the structure of your review:

• The nature of your research question
• The volume and patterns of the literature available
• Your intended audience and their familiarity with the topic

Ultimately, the choice between thematic and chronological organization should align with your research objectives and the most effective way to communicate your findings to your audience.

Balancing Summary and Critical Analysis

In your literature review, you must strike a delicate balance between summarizing the existing body of work and providing a critical analysis of it. Summarization is necessary to give your readers a clear understanding of the current knowledge landscape. However, it's the critical analysis that showcases your scholarly insight, as you evaluate the strengths and weaknesses of the research, identify gaps, and suggest areas for further study.

Consider the following points when balancing these two aspects:

• Summarize key findings and theories succinctly to provide a foundation for your analysis.
• Critically assess methodologies, results, and arguments presented in the literature.
• Reflect on the relevance and impact of the research in relation to your study.
• Highlight inconsistencies or controversies that may warrant additional investigation.

Remember, the depth of your literature review should align with the academic level and expectations of your research. For instance, a bachelor thesis might explore research gaps within a 30-60 page review , while a master thesis will demand a more extensive engagement with literature, emphasizing meticulous data collection and analysis. The purpose of your review, whether to summarize current knowledge, generate new ideas, or perform a critical assessment , will ultimately guide its length and complexity.

Determining the Appropriate Length

Factors influencing the extent of the review.

The extent of your literature review is not a one-size-fits-all matter; it is influenced by several factors that you must consider to ensure its effectiveness and relevance. The purpose of your review is paramount; are you providing a comprehensive background for a dissertation, or are you focusing on a specific aspect for a journal article? The scope of your research question also plays a critical role. A broad question may require a more extensive review, while a narrow one might only necessitate a focused survey of the literature.

When considering the length of your literature review, reflect on the following points:

• The literature gap and potential for future research. An exhaustive review is essential to identify these gaps.
• The quality and design of the study, including the population, intervention, and outcomes.
• The need to formulate testable hypotheses and review existing literature to address knowledge gaps.
• The turnaround time for publishing, which may influence the depth and timing of your review.

Ultimately, the length of your literature review should be dictated by its contribution to your research objectives, ensuring a balance between comprehensiveness and focus.

Academic Level and Expectations

The academic level at which you are operating significantly dictates the expected length and depth of your literature review. For instance, high school term papers typically range from 3 to 5 pages, while final projects may extend to 5 to 7 pages. Undergraduate assignments often require a more comprehensive review , as do honor's capstone projects or theses.

At the graduate level, expectations escalate. A master's thesis not only demands a substantial literature review but also an independent research contribution to the field. The complexity of your review should mirror the academic rigor of your program. For example, a doctoral dissertation will necessitate an even more extensive survey of literature, reflecting the high level of scholarly inquiry.

Consider the following points when determining the length of your literature review:

• The objective of your research project
• The requirements of your academic program
• The expectations set by your advisor or committee

Remember, a well-crafted literature review is a keystone of your academic work, serving as both a foundation for your research and a demonstration of your scholarly competence.

The Relationship Between Review Length and Research Complexity

The complexity of your research topic plays a pivotal role in determining the length of your literature review. A nuanced and intricate topic will naturally require a more extensive review to cover the relevant literature comprehensively. The ultimate length of the Literature Review depends entirely on the types of sources and the resulting arguments that emerge from synthesizing those sources. This synthesis is not merely a summary but a detailed analysis that evaluates and integrates the findings into your research context.

When you embark on a literature review, consider the following points:

• Analyze gaps in the literature to identify where your research fits.
• Explore personal interests and align them with your academic goals.
• Identify your expertise and use it to guide your literature selection.

Remember, the goal is not to include as many sources as possible but to critically engage with the most relevant ones. Your review should not only reflect the existing body of knowledge but also pave the way for your original contribution. Tools and tips for thesis writing can be invaluable in organizing your research and defining the purpose of your thesis. Features like worksheets and academic project planners can help manage references and streamline the literature review process.

Writing and Refining the Literature Review

Crafting clear and concise arguments.

In the quest to articulate your research findings and perspectives, clarity and brevity are your allies . Your literature review should present a persuasive argument, grounded in a robust analysis of the literature. Begin with a definitive thesis statement that encapsulates the essence of your argument. This statement serves as the anchor for your entire review, guiding the reader through your critical discourse.

To ensure your arguments are both clear and concise, consider the following points:

• Identify the central theme of your research and align your literature review accordingly.
• Avoid superfluous language; be succinct yet thorough in your explanations.
• Distinguish between essential details and extraneous information.
• Use transitional phrases to maintain a logical flow between ideas.

Remember, a well-crafted argument is not measured by its length but by its ability to convey complex ideas with simplicity and precision. By adhering to these principles, you will enhance the readability and impact of your literature review.

Incorporating Feedback and Revisions

Once you have drafted your literature review, it is crucial to engage in the iterative process of receiving and incorporating feedback . This step is not merely about correcting errors but about refining your arguments and ensuring your review aligns with your research objectives. Begin by revisiting your initial assumptions and the design of your research, especially if you encounter contradictory data. This re-evaluation is essential for maintaining accuracy and opening up new insights.

When you receive feedback, whether from peers, advisors, or through peer review, focus on the constructive elements . Offer clear, specific, and practical suggestions to address any weaknesses identified. Remember, the goal is to enhance the quality of your literature review, making it a robust foundation for your research. The final stage involves writing and revising the literature review to polish your narrative and arguments. Here is a simple checklist to guide you through this phase:

• Review comments and suggestions carefully.
• Prioritize revisions based on their impact on your review's clarity and coherence.
• Make necessary changes while maintaining your own scholarly voice.
• Ensure all revisions are consistent with the overall structure and theme of your review.
• Revisit your sources to verify citations and avoid any potential issues with plagiarism.

Ensuring Adequate Citation and Avoiding Plagiarism

In the meticulous process of crafting your literature review, ensuring adequate citation is paramount. Not only does it demonstrate the breadth of your research, but it also pays homage to the original authors of the works you reference. Proper citation practices are the bulwark against the serious academic offense of plagiarism. To maintain the integrity of your work, consider the following steps:

• Familiarize yourself with the citation style required for your discipline, whether it be APA, MLA, or another format.
• Keep a detailed record of all sources consulted during your research, including page numbers for direct quotes.
• Utilize citation management tools or software to streamline the referencing process.

Remember, a literature review is not just a summary of existing knowledge; it is a scholarly conversation where you engage with and build upon the work of others. As such, the LibGuides at MIT Libraries emphasize the importance of listing sources to show thorough research. By citing sources properly , you acknowledge the creators of the original information resources, thereby avoiding the pitfalls of plagiarism. This practice not only reflects your academic diligence but also upholds the ethical standards of scholarly writing.

Embarking on the journey of crafting a literature review can be daunting, but with the right guidance, it becomes an enlightening experience. At Research Rebels , we understand the challenges you face and offer a step-by-step Thesis Action Plan to streamline your writing process. Our proven methodologies, endorsed by professors and tested by students worldwide, are designed to alleviate your anxiety and help you write with confidence. Don't let sleepless nights hinder your academic progress. Visit our website now to claim your special offer and take the first step towards a stress-free literature review!

In conclusion, the ideal length of a literature review is not a one-size-fits-all measurement but rather a reflection of the scope, depth, and purpose of the research at hand. It should be long enough to cover the key literature comprehensively, yet concise enough to remain focused and relevant. The review's length may vary depending on the academic level, the complexity of the topic, and the requirements of the research paper or thesis. Ultimately, the literature review should serve as a critical synthesis of the research that establishes a foundation for understanding the research problem, justifies the study's necessity, and guides the research methodology. Striking the right balance in length will ensure that the literature review fulfills its role as an integral component of scholarly research.

Frequently Asked Questions

What factors determine the ideal length of a literature review.

The ideal length of a literature review is influenced by the purpose and scope of the research, the academic level, the complexity of the topic, and specific guidelines provided by the institution or publication.

How does academic level affect the length of a literature review?

Higher academic levels typically require more comprehensive literature reviews. Undergraduate reviews may be shorter, while doctoral theses often demand extensive reviews to demonstrate a thorough understanding of the field.

Can the length of a literature review impact the quality of research?

Yes, both overly brief and excessively long reviews can affect research quality. A well-balanced review should be long enough to cover the key literature comprehensively but concise enough to remain focused and relevant.

Is there a standard page count for literature reviews in research papers?

There is no strict standard, as the length varies by field and research scope. However, guidelines suggest that reviews for short papers might range from 2-3 pages, while longer works may require more extensive reviews.

Should a literature review cover every source on the topic?

No, a literature review should be selective, focusing on the most relevant and significant sources that directly relate to the research question and objectives.

How can I ensure my literature review is neither too long nor too short?

Consult with your advisor or follow institutional guidelines, organize your review effectively, and focus on synthesizing key findings while maintaining a clear connection to your research question.

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Writing a Literature Review

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A literature review is a document or section of a document that collects key sources on a topic and discusses those sources in conversation with each other (also called synthesis ). The lit review is an important genre in many disciplines, not just literature (i.e., the study of works of literature such as novels and plays). When we say “literature review” or refer to “the literature,” we are talking about the research ( scholarship ) in a given field. You will often see the terms “the research,” “the scholarship,” and “the literature” used mostly interchangeably.

Where, when, and why would I write a lit review?

There are a number of different situations where you might write a literature review, each with slightly different expectations; different disciplines, too, have field-specific expectations for what a literature review is and does. For instance, in the humanities, authors might include more overt argumentation and interpretation of source material in their literature reviews, whereas in the sciences, authors are more likely to report study designs and results in their literature reviews; these differences reflect these disciplines’ purposes and conventions in scholarship. You should always look at examples from your own discipline and talk to professors or mentors in your field to be sure you understand your discipline’s conventions, for literature reviews as well as for any other genre.

A literature review can be a part of a research paper or scholarly article, usually falling after the introduction and before the research methods sections. In these cases, the lit review just needs to cover scholarship that is important to the issue you are writing about; sometimes it will also cover key sources that informed your research methodology.

Lit reviews can also be standalone pieces, either as assignments in a class or as publications. In a class, a lit review may be assigned to help students familiarize themselves with a topic and with scholarship in their field, get an idea of the other researchers working on the topic they’re interested in, find gaps in existing research in order to propose new projects, and/or develop a theoretical framework and methodology for later research. As a publication, a lit review usually is meant to help make other scholars’ lives easier by collecting and summarizing, synthesizing, and analyzing existing research on a topic. This can be especially helpful for students or scholars getting into a new research area, or for directing an entire community of scholars toward questions that have not yet been answered.

What are the parts of a lit review?

Most lit reviews use a basic introduction-body-conclusion structure; if your lit review is part of a larger paper, the introduction and conclusion pieces may be just a few sentences while you focus most of your attention on the body. If your lit review is a standalone piece, the introduction and conclusion take up more space and give you a place to discuss your goals, research methods, and conclusions separately from where you discuss the literature itself.

Introduction:

• An introductory paragraph that explains what your working topic and thesis is
• A forecast of key topics or texts that will appear in the review
• Potentially, a description of how you found sources and how you analyzed them for inclusion and discussion in the review (more often found in published, standalone literature reviews than in lit review sections in an article or research paper)
• Summarize and synthesize: Give an overview of the main points of each source and combine them into a coherent whole
• Analyze and interpret: Don’t just paraphrase other researchers – add your own interpretations where possible, discussing the significance of findings in relation to the literature as a whole
• Critically Evaluate: Mention the strengths and weaknesses of your sources
• Write in well-structured paragraphs: Use transition words and topic sentence to draw connections, comparisons, and contrasts.

Conclusion:

• Summarize the key findings you have taken from the literature and emphasize their significance
• Connect it back to your primary research question

How should I organize my lit review?

Lit reviews can take many different organizational patterns depending on what you are trying to accomplish with the review. Here are some examples:

• Chronological : The simplest approach is to trace the development of the topic over time, which helps familiarize the audience with the topic (for instance if you are introducing something that is not commonly known in your field). If you choose this strategy, be careful to avoid simply listing and summarizing sources in order. Try to analyze the patterns, turning points, and key debates that have shaped the direction of the field. Give your interpretation of how and why certain developments occurred (as mentioned previously, this may not be appropriate in your discipline — check with a teacher or mentor if you’re unsure).
• Thematic : If you have found some recurring central themes that you will continue working with throughout your piece, you can organize your literature review into subsections that address different aspects of the topic. For example, if you are reviewing literature about women and religion, key themes can include the role of women in churches and the religious attitude towards women.
• Qualitative versus quantitative research
• Empirical versus theoretical scholarship
• Divide the research by sociological, historical, or cultural sources
• Theoretical : In many humanities articles, the literature review is the foundation for the theoretical framework. You can use it to discuss various theories, models, and definitions of key concepts. You can argue for the relevance of a specific theoretical approach or combine various theorical concepts to create a framework for your research.

What are some strategies or tips I can use while writing my lit review?

Any lit review is only as good as the research it discusses; make sure your sources are well-chosen and your research is thorough. Don’t be afraid to do more research if you discover a new thread as you’re writing. More info on the research process is available in our "Conducting Research" resources .

As you’re doing your research, create an annotated bibliography ( see our page on the this type of document ). Much of the information used in an annotated bibliography can be used also in a literature review, so you’ll be not only partially drafting your lit review as you research, but also developing your sense of the larger conversation going on among scholars, professionals, and any other stakeholders in your topic.

Usually you will need to synthesize research rather than just summarizing it. This means drawing connections between sources to create a picture of the scholarly conversation on a topic over time. Many student writers struggle to synthesize because they feel they don’t have anything to add to the scholars they are citing; here are some strategies to help you:

• It often helps to remember that the point of these kinds of syntheses is to show your readers how you understand your research, to help them read the rest of your paper.
• Writing teachers often say synthesis is like hosting a dinner party: imagine all your sources are together in a room, discussing your topic. What are they saying to each other?
• Look at the in-text citations in each paragraph. Are you citing just one source for each paragraph? This usually indicates summary only. When you have multiple sources cited in a paragraph, you are more likely to be synthesizing them (not always, but often
• Read more about synthesis here.

The most interesting literature reviews are often written as arguments (again, as mentioned at the beginning of the page, this is discipline-specific and doesn’t work for all situations). Often, the literature review is where you can establish your research as filling a particular gap or as relevant in a particular way. You have some chance to do this in your introduction in an article, but the literature review section gives a more extended opportunity to establish the conversation in the way you would like your readers to see it. You can choose the intellectual lineage you would like to be part of and whose definitions matter most to your thinking (mostly humanities-specific, but this goes for sciences as well). In addressing these points, you argue for your place in the conversation, which tends to make the lit review more compelling than a simple reporting of other sources.

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A roadmap for writing a literature review in a master’s thesis: Examples and guidelines

• backlinkworks
• Writing Articles & Reviews
• December 27, 2023

writing a literature review is an essential part of any master’s thesis. IT involves critically evaluating and synthesizing existing research to provide a comprehensive overview of the current state of knowledge in a particular field. A well-written literature review demonstrates your understanding of the scholarly conversation surrounding your research topic and helps to contextualize your own work within the broader academic landscape.

1. Understand the purpose of a literature review

Before you begin writing your literature review, IT ‘s important to understand its purpose. A literature review serves several key functions, including:

• Providing a comprehensive overview of existing research in your field.
• Critically evaluating the strengths and weaknesses of previous studies.
• Identifying gaps in the literature and highlighting areas for future research.
• Contextualizing your own research within the broader academic discourse.

By clearly understanding the purpose of your literature review, you can ensure that your writing is focused and relevant to your thesis.

2. Conduct a comprehensive literature search

Once you have a clear understanding of the purpose of your literature review, the next step is to conduct a comprehensive search for relevant academic sources. This involves searching for peer-reviewed journal articles, books, conference proceedings, and other scholarly publications related to your research topic.

IT ‘s important to use a variety of search strategies, including keyword searches, citation tracking, and database searches, to ensure that you are capturing all relevant literature. Additionally, consider using citation management software to organize and manage your references.

For example, if your master’s thesis is about the impact of social media on mental health, you would want to search for literature that examines the relationship between social media use and psychological well-being. This might include studies on social media usage patterns, the prevalence of mental health issues among social media users, and the potential benefits and drawbacks of social media use.

3. Analyze and synthesize the literature

Once you have gathered a comprehensive collection of literature related to your research topic, the next step is to analyze and synthesize the information. This involves critically evaluating the strengths and weaknesses of each study, identifying key themes and patterns across the literature, and synthesizing the findings into a coherent narrative.

When analyzing and synthesizing the literature, consider the following questions:

• What are the main findings and arguments of each source?
• What are the strengths and weaknesses of each study?
• What key themes and patterns emerge across the literature?

Using the example of the impact of social media on mental health, you might identify several key themes that emerge across the literature, such as the relationship between social media use and depression, the role of cyberbullying in affecting mental well-being, and the potential benefits of online peer support networks.

4. Write the literature review

With a clear understanding of the purpose of your literature review, a comprehensive collection of relevant literature, and a synthesized analysis of the existing research, you are now ready to write your literature review. When writing your literature review, consider the following guidelines:

• Provide a clear and comprehensive overview of the existing literature in your field.
• Critically evaluate and synthesize the key findings and arguments of each source.
• Organize the literature thematically or chronologically to highlight key patterns and developments in the research.
• Keep the focus on how each source relates to your research topic and thesis.

Continuing with the example of the impact of social media on mental health, your literature review might be organized into sections that correspond to the key themes you identified during your analysis. Each section could summarize and evaluate the existing literature on a specific aspect of the relationship between social media use and mental well-being, providing a clear overview of the current state of knowledge in the field.

5. Conclusion

Overall, writing a literature review for your master’s thesis involves understanding the purpose of the literature review, conducting a comprehensive literature search, analyzing and synthesizing the literature, and writing a well-organized and critical review of the existing research. By following these guidelines and examples, you can ensure that your literature review effectively contextualizes your own research within the broader academic discourse.

Q: How long should a literature review be?

A: The length of a literature review can vary depending on the requirements of your master’s thesis and the depth and breadth of the existing literature. In general, a literature review for a master’s thesis is typically around 3000-5000 words, but this can vary based on the specific expectations of your program or advisor.

Q: How many sources should I include in my literature review?

A: The number of sources you include in your literature review will depend on the scope of your research topic and the expectations of your program or advisor. In general, a literature review for a master’s thesis should include a comprehensive collection of relevant sources, typically ranging from 20-50 academic articles, books, and other scholarly publications.

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How Long Should a Literature Review Be?

4-minute read

• 7th October 2023

If you’re writing a research paper or dissertation , then you know how important it is to include a thorough, comprehensive literature review. But exactly how long should your literature review be in relation to the rest of your work? While there’s no one-size-fits-all answer to that question, there are some factors that will help determine the length of your review. In this post, we’ll discuss what information to include in your literature review and how long it should be.

Keep reading to learn more.

What Is a Literature Review?

A literature review is a critical summary and evaluation of the current resources (e.g., books and journal articles) on a specific topic or research question. It is a crucial part of academic writing, such as dissertations, in all categories and fields. Essentially, literature reviews help contextualize your investigations and show how your work is building on existing research.

No matter how long your literature review is, it should generally:

●  Establish context for your research (i.e., provide relevant background information so your reader understands the historical significance of your study ).

●  Identify gaps in the existing literature (such as unaddressed questions or aspects of your topic).

●  Highlight significant concepts related to your topic.

●  Cite relevant studies.

●  Support your argument.

It’s also essential that a literature review critically analyze the sources cited in your study, considering factors such as sample size, research design, and potential biases. Be sure to structure your literature review using the same referencing style as the rest of your research paper (e.g., APA , Chicago , MLA ).

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The length of your literature review depends on several factors, including the scope and purpose of your research. In general, the length of the review should be proportionate to your overall paper. For example, if you’re writing a fifty-thousand-word dissertation, then your literature review will likely be an entire chapter comprising about 20 pages. If it’s for a 15-page research paper, your literature review may only be a few pages.

Here are several factors that could affect the length of your literature review:

●  Institutional guidelines : Always check the guidelines provided by your institution or journal (such as an APA journal ). There may be a specific length or word count required for publication.

●  Scope : If your research topic is narrow and focused, your literature review may be shorter. Conversely, if your topic is broad and encompasses a large body of literature, your review may need to be longer.

●  Field of study : Different academic fields may have different expectations regarding the length of literature reviews. For example, literature reviews in the humanities might be longer than those in the natural sciences.

Also, consider your audience. If your literature review is for a general audience or a class assignment, it can probably be shorter and less specialized. However, if it’s for an academic audience in your field of study, you may need to be more thorough and provide an extensive review of the existing literature.

Most literature reviews follow the same basic structure of an introduction, body, and conclusion. Most of the time, they are part of a larger work, so the introduction and conclusion paragraphs will be relatively brief.

However, if the review is a standalone piece, then your introduction and conclusion will be longer since you will need to discuss your research objectives, methods, and findings as well as analyze the literature used in your study.

To ensure your literature review makes an impression, have it professionally proofread by our expert literature review editing services . Submit your free sample of 500 words or less to get started today!

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How To Write An A-Grade Literature Review

3 straightforward steps (with examples) + free template.

By: Derek Jansen (MBA) | Expert Reviewed By: Dr. Eunice Rautenbach | October 2019

Quality research is about building onto the existing work of others , “standing on the shoulders of giants”, as Newton put it. The literature review chapter of your dissertation, thesis or research project is where you synthesise this prior work and lay the theoretical foundation for your own research.

Long story short, this chapter is a pretty big deal, which is why you want to make sure you get it right . In this post, I’ll show you exactly how to write a literature review in three straightforward steps, so you can conquer this vital chapter (the smart way).

Overview: The Literature Review Process

• Understanding the “ why “
• Finding the relevant literature
• Cataloguing and synthesising the information
• Outlining & writing up your literature review
• Example of a literature review

But first, the “why”…

Before we unpack how to write the literature review chapter, we’ve got to look at the why . To put it bluntly, if you don’t understand the function and purpose of the literature review process, there’s no way you can pull it off well. So, what exactly is the purpose of the literature review?

Well, there are (at least) four core functions:

• For you to gain an understanding (and demonstrate this understanding) of where the research is at currently, what the key arguments and disagreements are.
• For you to identify the gap(s) in the literature and then use this as justification for your own research topic.
• To help you build a conceptual framework for empirical testing (if applicable to your research topic).
• To inform your methodological choices and help you source tried and tested questionnaires (for interviews ) and measurement instruments (for surveys ).

Most students understand the first point but don’t give any thought to the rest. To get the most from the literature review process, you must keep all four points front of mind as you review the literature (more on this shortly), or you’ll land up with a wonky foundation.

Okay – with the why out the way, let’s move on to the how . As mentioned above, writing your literature review is a process, which I’ll break down into three steps:

• Finding the most suitable literature
• Understanding , distilling and organising the literature
• Planning and writing up your literature review chapter

Importantly, you must complete steps one and two before you start writing up your chapter. I know it’s very tempting, but don’t try to kill two birds with one stone and write as you read. You’ll invariably end up wasting huge amounts of time re-writing and re-shaping, or you’ll just land up with a disjointed, hard-to-digest mess . Instead, you need to read first and distil the information, then plan and execute the writing.

Step 1: Find the relevant literature

Naturally, the first step in the literature review journey is to hunt down the existing research that’s relevant to your topic. While you probably already have a decent base of this from your research proposal , you need to expand on this substantially in the dissertation or thesis itself.

Essentially, you need to be looking for any existing literature that potentially helps you answer your research question (or develop it, if that’s not yet pinned down). There are numerous ways to find relevant literature, but I’ll cover my top four tactics here. I’d suggest combining all four methods to ensure that nothing slips past you:

Method 1 – Google Scholar Scrubbing

Google’s academic search engine, Google Scholar , is a great starting point as it provides a good high-level view of the relevant journal articles for whatever keyword you throw at it. Most valuably, it tells you how many times each article has been cited, which gives you an idea of how credible (or at least, popular) it is. Some articles will be free to access, while others will require an account, which brings us to the next method.

Method 2 – University Database Scrounging

Generally, universities provide students with access to an online library, which provides access to many (but not all) of the major journals.

So, if you find an article using Google Scholar that requires paid access (which is quite likely), search for that article in your university’s database – if it’s listed there, you’ll have access. Note that, generally, the search engine capabilities of these databases are poor, so make sure you search for the exact article name, or you might not find it.

Method 3 – Journal Article Snowballing

At the end of every academic journal article, you’ll find a list of references. As with any academic writing, these references are the building blocks of the article, so if the article is relevant to your topic, there’s a good chance a portion of the referenced works will be too. Do a quick scan of the titles and see what seems relevant, then search for the relevant ones in your university’s database.

Method 4 – Dissertation Scavenging

Similar to Method 3 above, you can leverage other students’ dissertations. All you have to do is skim through literature review chapters of existing dissertations related to your topic and you’ll find a gold mine of potential literature. Usually, your university will provide you with access to previous students’ dissertations, but you can also find a much larger selection in the following databases:

• Open Access Theses & Dissertations
• Stanford SearchWorks

Keep in mind that dissertations and theses are not as academically sound as published, peer-reviewed journal articles (because they’re written by students, not professionals), so be sure to check the credibility of any sources you find using this method. You can do this by assessing the citation count of any given article in Google Scholar. If you need help with assessing the credibility of any article, or with finding relevant research in general, you can chat with one of our Research Specialists .

Alright – with a good base of literature firmly under your belt, it’s time to move onto the next step.

Need a helping hand?

Step 2: Log, catalogue and synthesise

Once you’ve built a little treasure trove of articles, it’s time to get reading and start digesting the information – what does it all mean?

While I present steps one and two (hunting and digesting) as sequential, in reality, it’s more of a back-and-forth tango – you’ll read a little , then have an idea, spot a new citation, or a new potential variable, and then go back to searching for articles. This is perfectly natural – through the reading process, your thoughts will develop , new avenues might crop up, and directional adjustments might arise. This is, after all, one of the main purposes of the literature review process (i.e. to familiarise yourself with the current state of research in your field).

As you’re working through your treasure chest, it’s essential that you simultaneously start organising the information. There are three aspects to this:

• Logging reference information
• Building an organised catalogue
• Distilling and synthesising the information

I’ll discuss each of these below:

2.1 – Log the reference information

As you read each article, you should add it to your reference management software. I usually recommend Mendeley for this purpose (see the Mendeley 101 video below), but you can use whichever software you’re comfortable with. Most importantly, make sure you load EVERY article you read into your reference manager, even if it doesn’t seem very relevant at the time.

2.2 – Build an organised catalogue

In the beginning, you might feel confident that you can remember who said what, where, and what their main arguments were. Trust me, you won’t. If you do a thorough review of the relevant literature (as you must!), you’re going to read many, many articles, and it’s simply impossible to remember who said what, when, and in what context . Also, without the bird’s eye view that a catalogue provides, you’ll miss connections between various articles, and have no view of how the research developed over time. Simply put, it’s essential to build your own catalogue of the literature.

I would suggest using Excel to build your catalogue, as it allows you to run filters, colour code and sort – all very useful when your list grows large (which it will). How you lay your spreadsheet out is up to you, but I’d suggest you have the following columns (at minimum):

• Author, date, title – Start with three columns containing this core information. This will make it easy for you to search for titles with certain words, order research by date, or group by author.
• Categories or keywords – You can either create multiple columns, one for each category/theme and then tick the relevant categories, or you can have one column with keywords.
• Key arguments/points – Use this column to succinctly convey the essence of the article, the key arguments and implications thereof for your research.
• Context – Note the socioeconomic context in which the research was undertaken. For example, US-based, respondents aged 25-35, lower- income, etc. This will be useful for making an argument about gaps in the research.
• Methodology – Note which methodology was used and why. Also, note any issues you feel arise due to the methodology. Again, you can use this to make an argument about gaps in the research.
• Quotations – Note down any quoteworthy lines you feel might be useful later.
• Notes – Make notes about anything not already covered. For example, linkages to or disagreements with other theories, questions raised but unanswered, shortcomings or limitations, and so forth.

If you’d like, you can try out our free catalog template here (see screenshot below).

2.3 – Digest and synthesise

Most importantly, as you work through the literature and build your catalogue, you need to synthesise all the information in your own mind – how does it all fit together? Look for links between the various articles and try to develop a bigger picture view of the state of the research. Some important questions to ask yourself are:

• What answers does the existing research provide to my own research questions ?
• Which points do the researchers agree (and disagree) on?
• How has the research developed over time?
• Where do the gaps in the current research lie?

To help you develop a big-picture view and synthesise all the information, you might find mind mapping software such as Freemind useful. Alternatively, if you’re a fan of physical note-taking, investing in a large whiteboard might work for you.

Step 3: Outline and write it up!

Once you’re satisfied that you have digested and distilled all the relevant literature in your mind, it’s time to put pen to paper (or rather, fingers to keyboard). There are two steps here – outlining and writing:

3.1 – Draw up your outline

Having spent so much time reading, it might be tempting to just start writing up without a clear structure in mind. However, it’s critically important to decide on your structure and develop a detailed outline before you write anything. Your literature review chapter needs to present a clear, logical and an easy to follow narrative – and that requires some planning. Don’t try to wing it!

Naturally, you won’t always follow the plan to the letter, but without a detailed outline, you’re more than likely going to end up with a disjointed pile of waffle , and then you’re going to spend a far greater amount of time re-writing, hacking and patching. The adage, “measure twice, cut once” is very suitable here.

In terms of structure, the first decision you’ll have to make is whether you’ll lay out your review thematically (into themes) or chronologically (by date/period). The right choice depends on your topic, research objectives and research questions, which we discuss in this article .

Once that’s decided, you need to draw up an outline of your entire chapter in bullet point format. Try to get as detailed as possible, so that you know exactly what you’ll cover where, how each section will connect to the next, and how your entire argument will develop throughout the chapter. Also, at this stage, it’s a good idea to allocate rough word count limits for each section, so that you can identify word count problems before you’ve spent weeks or months writing!

PS – check out our free literature review chapter template…

3.2 – Get writing

With a detailed outline at your side, it’s time to start writing up (finally!). At this stage, it’s common to feel a bit of writer’s block and find yourself procrastinating under the pressure of finally having to put something on paper. To help with this, remember that the objective of the first draft is not perfection – it’s simply to get your thoughts out of your head and onto paper, after which you can refine them. The structure might change a little, the word count allocations might shift and shuffle, and you might add or remove a section – that’s all okay. Don’t worry about all this on your first draft – just get your thoughts down on paper.

Once you’ve got a full first draft (however rough it may be), step away from it for a day or two (longer if you can) and then come back at it with fresh eyes. Pay particular attention to the flow and narrative – does it fall fit together and flow from one section to another smoothly? Now’s the time to try to improve the linkage from each section to the next, tighten up the writing to be more concise, trim down word count and sand it down into a more digestible read.

Once you’ve done that, give your writing to a friend or colleague who is not a subject matter expert and ask them if they understand the overall discussion. The best way to assess this is to ask them to explain the chapter back to you. This technique will give you a strong indication of which points were clearly communicated and which weren’t. If you’re working with Grad Coach, this is a good time to have your Research Specialist review your chapter.

Finally, tighten it up and send it off to your supervisor for comment. Some might argue that you should be sending your work to your supervisor sooner than this (indeed your university might formally require this), but in my experience, supervisors are extremely short on time (and often patience), so, the more refined your chapter is, the less time they’ll waste on addressing basic issues (which you know about already) and the more time they’ll spend on valuable feedback that will increase your mark-earning potential.

Literature Review Example

In the video below, we unpack an actual literature review so that you can see how all the core components come together in reality.

Let’s Recap

In this post, we’ve covered how to research and write up a high-quality literature review chapter. Let’s do a quick recap of the key takeaways:

• It is essential to understand the WHY of the literature review before you read or write anything. Make sure you understand the 4 core functions of the process.
• The first step is to hunt down the relevant literature . You can do this using Google Scholar, your university database, the snowballing technique and by reviewing other dissertations and theses.
• Next, you need to log all the articles in your reference manager , build your own catalogue of literature and synthesise all the research.
• Following that, you need to develop a detailed outline of your entire chapter – the more detail the better. Don’t start writing without a clear outline (on paper, not in your head!)
• Write up your first draft in rough form – don’t aim for perfection. Remember, done beats perfect.
• Refine your second draft and get a layman’s perspective on it . Then tighten it up and submit it to your supervisor.

Psst… there’s more!

This post is an extract from our bestselling short course, Literature Review Bootcamp . If you want to work smart, you don't want to miss this .

38 Comments

Thank you very much. This page is an eye opener and easy to comprehend.

This is awesome!

I wish I come across GradCoach earlier enough.

But all the same I’ll make use of this opportunity to the fullest.

Thank you for this good job.

Keep it up!

You’re welcome, Yinka. Thank you for the kind words. All the best writing your literature review.

Thank you for a very useful literature review session. Although I am doing most of the steps…it being my first masters an Mphil is a self study and one not sure you are on the right track. I have an amazing supervisor but one also knows they are super busy. So not wanting to bother on the minutae. Thank you.

You’re most welcome, Renee. Good luck with your literature review 🙂

This has been really helpful. Will make full use of it. 🙂

Thank you Gradcoach.

Really agreed. Admirable effort

thank you for this beautiful well explained recap.

Thank you so much for your guide of video and other instructions for the dissertation writing.

It is instrumental. It encouraged me to write a dissertation now.

Thank you the video was great – from someone that knows nothing thankyou

an amazing and very constructive way of presetting a topic, very useful, thanks for the effort,

It is timely

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Thank you so much Derek for such useful information on writing up a good literature review. I am at a stage where I need to start writing my one. My proposal was accepted late last year but I honestly did not know where to start

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• What is a Literature Review? | Guide, Template, & Examples

What is a Literature Review? | Guide, Template, & Examples

Published on 22 February 2022 by Shona McCombes . Revised on 7 June 2022.

What is a literature review? A literature review is a survey of scholarly sources on a specific topic. It provides an overview of current knowledge, allowing you to identify relevant theories, methods, and gaps in the existing research.

There are five key steps to writing a literature review:

• Search for relevant literature
• Evaluate sources
• Identify themes, debates and gaps
• Outline the structure
• Write your literature review

A good literature review doesn’t just summarise sources – it analyses, synthesises, and critically evaluates to give a clear picture of the state of knowledge on the subject.

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Table of contents

Why write a literature review, examples of literature reviews, step 1: search for relevant literature, step 2: evaluate and select sources, step 3: identify themes, debates and gaps, step 4: outline your literature review’s structure, step 5: write your literature review, frequently asked questions about literature reviews, introduction.

• Quick Run-through
• Step 1 & 2

When you write a dissertation or thesis, you will have to conduct a literature review to situate your research within existing knowledge. The literature review gives you a chance to:

• Demonstrate your familiarity with the topic and scholarly context
• Develop a theoretical framework and methodology for your research
• Position yourself in relation to other researchers and theorists
• Show how your dissertation addresses a gap or contributes to a debate

You might also have to write a literature review as a stand-alone assignment. In this case, the purpose is to evaluate the current state of research and demonstrate your knowledge of scholarly debates around a topic.

The content will look slightly different in each case, but the process of conducting a literature review follows the same steps. We’ve written a step-by-step guide that you can follow below.

Prevent plagiarism, run a free check.

Writing literature reviews can be quite challenging! A good starting point could be to look at some examples, depending on what kind of literature review you’d like to write.

• Example literature review #1: “Why Do People Migrate? A Review of the Theoretical Literature” ( Theoretical literature review about the development of economic migration theory from the 1950s to today.)
• Example literature review #2: “Literature review as a research methodology: An overview and guidelines” ( Methodological literature review about interdisciplinary knowledge acquisition and production.)
• Example literature review #3: “The Use of Technology in English Language Learning: A Literature Review” ( Thematic literature review about the effects of technology on language acquisition.)
• Example literature review #4: “Learners’ Listening Comprehension Difficulties in English Language Learning: A Literature Review” ( Chronological literature review about how the concept of listening skills has changed over time.)

You can also check out our templates with literature review examples and sample outlines at the links below.

Download Word doc Download Google doc

Before you begin searching for literature, you need a clearly defined topic .

If you are writing the literature review section of a dissertation or research paper, you will search for literature related to your research objectives and questions .

If you are writing a literature review as a stand-alone assignment, you will have to choose a focus and develop a central question to direct your search. Unlike a dissertation research question, this question has to be answerable without collecting original data. You should be able to answer it based only on a review of existing publications.

Make a list of keywords

Start by creating a list of keywords related to your research topic. Include each of the key concepts or variables you’re interested in, and list any synonyms and related terms. You can add to this list if you discover new keywords in the process of your literature search.

• Social media, Facebook, Instagram, Twitter, Snapchat, TikTok
• Body image, self-perception, self-esteem, mental health
• Generation Z, teenagers, adolescents, youth

Search for relevant sources

Use your keywords to begin searching for sources. Some databases to search for journals and articles include:

• Your university’s library catalogue
• Google Scholar
• Project Muse (humanities and social sciences)
• Medline (life sciences and biomedicine)
• EconLit (economics)
• Inspec (physics, engineering and computer science)

You can use boolean operators to help narrow down your search:

Read the abstract to find out whether an article is relevant to your question. When you find a useful book or article, you can check the bibliography to find other relevant sources.

To identify the most important publications on your topic, take note of recurring citations. If the same authors, books or articles keep appearing in your reading, make sure to seek them out.

You probably won’t be able to read absolutely everything that has been written on the topic – you’ll have to evaluate which sources are most relevant to your questions.

For each publication, ask yourself:

• What question or problem is the author addressing?
• What are the key concepts and how are they defined?
• What are the key theories, models and methods? Does the research use established frameworks or take an innovative approach?
• What are the results and conclusions of the study?
• How does the publication relate to other literature in the field? Does it confirm, add to, or challenge established knowledge?
• How does the publication contribute to your understanding of the topic? What are its key insights and arguments?
• What are the strengths and weaknesses of the research?

Make sure the sources you use are credible, and make sure you read any landmark studies and major theories in your field of research.

You can find out how many times an article has been cited on Google Scholar – a high citation count means the article has been influential in the field, and should certainly be included in your literature review.

The scope of your review will depend on your topic and discipline: in the sciences you usually only review recent literature, but in the humanities you might take a long historical perspective (for example, to trace how a concept has changed in meaning over time).

Remember that you can use our template to summarise and evaluate sources you’re thinking about using!

Take notes and cite your sources

As you read, you should also begin the writing process. Take notes that you can later incorporate into the text of your literature review.

It’s important to keep track of your sources with references to avoid plagiarism . It can be helpful to make an annotated bibliography, where you compile full reference information and write a paragraph of summary and analysis for each source. This helps you remember what you read and saves time later in the process.

You can use our free APA Reference Generator for quick, correct, consistent citations.

To begin organising your literature review’s argument and structure, you need to understand the connections and relationships between the sources you’ve read. Based on your reading and notes, you can look for:

• Trends and patterns (in theory, method or results): do certain approaches become more or less popular over time?
• Themes: what questions or concepts recur across the literature?
• Debates, conflicts and contradictions: where do sources disagree?
• Pivotal publications: are there any influential theories or studies that changed the direction of the field?
• Gaps: what is missing from the literature? Are there weaknesses that need to be addressed?

This step will help you work out the structure of your literature review and (if applicable) show how your own research will contribute to existing knowledge.

• Most research has focused on young women.
• There is an increasing interest in the visual aspects of social media.
• But there is still a lack of robust research on highly-visual platforms like Instagram and Snapchat – this is a gap that you could address in your own research.

There are various approaches to organising the body of a literature review. You should have a rough idea of your strategy before you start writing.

Depending on the length of your literature review, you can combine several of these strategies (for example, your overall structure might be thematic, but each theme is discussed chronologically).

Chronological

The simplest approach is to trace the development of the topic over time. However, if you choose this strategy, be careful to avoid simply listing and summarising sources in order.

Try to analyse patterns, turning points and key debates that have shaped the direction of the field. Give your interpretation of how and why certain developments occurred.

If you have found some recurring central themes, you can organise your literature review into subsections that address different aspects of the topic.

For example, if you are reviewing literature about inequalities in migrant health outcomes, key themes might include healthcare policy, language barriers, cultural attitudes, legal status, and economic access.

Methodological

If you draw your sources from different disciplines or fields that use a variety of research methods , you might want to compare the results and conclusions that emerge from different approaches. For example:

• Look at what results have emerged in qualitative versus quantitative research
• Discuss how the topic has been approached by empirical versus theoretical scholarship
• Divide the literature into sociological, historical, and cultural sources

Theoretical

A literature review is often the foundation for a theoretical framework . You can use it to discuss various theories, models, and definitions of key concepts.

You might argue for the relevance of a specific theoretical approach, or combine various theoretical concepts to create a framework for your research.

Like any other academic text, your literature review should have an introduction , a main body, and a conclusion . What you include in each depends on the objective of your literature review.

The introduction should clearly establish the focus and purpose of the literature review.

If you are writing the literature review as part of your dissertation or thesis, reiterate your central problem or research question and give a brief summary of the scholarly context. You can emphasise the timeliness of the topic (“many recent studies have focused on the problem of x”) or highlight a gap in the literature (“while there has been much research on x, few researchers have taken y into consideration”).

Depending on the length of your literature review, you might want to divide the body into subsections. You can use a subheading for each theme, time period, or methodological approach.

As you write, make sure to follow these tips:

• Summarise and synthesise: give an overview of the main points of each source and combine them into a coherent whole.
• Analyse and interpret: don’t just paraphrase other researchers – add your own interpretations, discussing the significance of findings in relation to the literature as a whole.
• Critically evaluate: mention the strengths and weaknesses of your sources.
• Write in well-structured paragraphs: use transitions and topic sentences to draw connections, comparisons and contrasts.

In the conclusion, you should summarise the key findings you have taken from the literature and emphasise their significance.

If the literature review is part of your dissertation or thesis, reiterate how your research addresses gaps and contributes new knowledge, or discuss how you have drawn on existing theories and methods to build a framework for your research. This can lead directly into your methodology section.

A literature review is a survey of scholarly sources (such as books, journal articles, and theses) related to a specific topic or research question .

It is often written as part of a dissertation , thesis, research paper , or proposal .

There are several reasons to conduct a literature review at the beginning of a research project:

• To familiarise yourself with the current state of knowledge on your topic
• To ensure that you’re not just repeating what others have already done
• To identify gaps in knowledge and unresolved problems that your research can address
• To develop your theoretical framework and methodology
• To provide an overview of the key findings and debates on the topic

Writing the literature review shows your reader how your work relates to existing research and what new insights it will contribute.

The literature review usually comes near the beginning of your  dissertation . After the introduction , it grounds your research in a scholarly field and leads directly to your theoretical framework or methodology .

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the ‘Cite this Scribbr article’ button to automatically add the citation to our free Reference Generator.

McCombes, S. (2022, June 07). What is a Literature Review? | Guide, Template, & Examples. Scribbr. Retrieved 30 September 2024, from https://www.scribbr.co.uk/thesis-dissertation/literature-review/

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How to write a literature review in 6 steps

What is a literature review?

How to write a literature review, 1. determine the purpose of your literature review, 2. do an extensive search, 3. evaluate and select literature, 4. analyze the literature, 5. plan the structure of your literature review, 6. write your literature review, other resources to help you write a successful literature review, frequently asked questions about writing a literature review, related articles.

A literature review is an assessment of the sources in a chosen topic of research.

A good literature review does not just summarize sources. It analyzes the state of the field on a given topic and creates a scholarly foundation for you to make your own intervention. It demonstrates to your readers how your research fits within a larger field of study.

In a thesis, a literature review is part of the introduction, but it can also be a separate section. In research papers, a literature review may have its own section or it may be integrated into the introduction, depending on the field.

➡️ Our guide on what is a literature review covers additional basics about literature reviews.

• Identify the main purpose of the literature review.
• Do extensive research.
• Evaluate and select relevant sources.
• Analyze the sources.
• Plan a structure.
• Write the review.

In this section, we review each step of the process of creating a literature review.

In the first step, make sure you know specifically what the assignment is and what form your literature review should take. Read your assignment carefully and seek clarification from your professor or instructor if needed. You should be able to answer the following questions:

• How many sources do I need to include?
• What types of sources should I review?
• Should I evaluate the sources?
• Should I summarize, synthesize or critique sources?
• Do I need to provide any definitions or background information?

In addition to that, be aware that the narrower your topic, the easier it will be to limit the number of sources you need to read in order to get a good overview of the topic.

Now you need to find out what has been written on the topic and search for literature related to your research topic. Make sure to select appropriate source material, which means using academic or scholarly sources , including books, reports, journal articles , government documents and web resources.

➡️ If you’re unsure about how to tell if a source is scholarly, take a look at our guide on how to identify a scholarly source .

Come up with a list of relevant keywords and then start your search with your institution's library catalog, and extend it to other useful databases and academic search engines like:

• Google Scholar
• Science.gov

➡️ Our guide on how to collect data for your thesis might be helpful at this stage of your research as well as the top list of academic search engines .

Once you find a useful article, check out the reference list. It should provide you with even more relevant sources. Also, keep a note of the:

• authors' names
• page numbers

Keeping track of the bibliographic information for each source will save you time when you’re ready to create citations. You could also use a reference manager like Paperpile to automatically save, manage, and cite your references.

Read the literature. You will most likely not be able to read absolutely everything that is out there on the topic. Therefore, read the abstract first to determine whether the rest of the source is worth your time. If the source is relevant for your topic:

• Read it critically.
• Look for the main arguments.
• Take notes as you read.
• Organize your notes using a table, mind map, or other technique.

Now you are ready to analyze the literature you have gathered. While your are working on your analysis, you should ask the following questions:

• What are the key terms, concepts and problems addressed by the author?
• How is this source relevant for my specific topic?
• How is the article structured? What are the major trends and findings?
• What are the conclusions of the study?
• How are the results presented? Is the source credible?
• When comparing different sources, how do they relate to each other? What are the similarities, what are the differences?
• Does the study help me understand the topic better?
• Are there any gaps in the research that need to be filled? How can I further my research as a result of the review?

Tip: Decide on the structure of your literature review before you start writing.

There are various ways to organize your literature review:

• Chronological method : Writing in the chronological method means you are presenting the materials according to when they were published. Follow this approach only if a clear path of research can be identified.
• Thematic review : A thematic review of literature is organized around a topic or issue, rather than the progression of time.
• Publication-based : You can order your sources by publication, if the way you present the order of your sources demonstrates a more important trend. This is the case when a progression revealed from study to study and the practices of researchers have changed and adapted due to the new revelations.
• Methodological approach : A methodological approach focuses on the methods used by the researcher. If you have used sources from different disciplines that use a variety of research methods, you might want to compare the results in light of the different methods and discuss how the topic has been approached from different sides.

Regardless of the structure you chose, a review should always include the following three sections:

• An introduction, which should give the reader an outline of why you are writing the review and explain the relevance of the topic.
• A body, which divides your literature review into different sections. Write in well-structured paragraphs, use transitions and topic sentences and critically analyze each source for how it contributes to the themes you are researching.
• A conclusion , which summarizes the key findings, the main agreements and disagreements in the literature, your overall perspective, and any gaps or areas for further research.

➡️ If your literature review is part of a longer paper, visit our guide on what is a research paper for additional tips.

➡️ UNC writing center: Literature reviews

➡️ How to write a literature review in 3 steps

➡️ How to write a literature review in 30 minutes or less

The goal of a literature review is to asses the state of the field on a given topic in preparation for making an intervention.

A literature review should have its own independent section. You should indicate clearly in the table of contents where it can be found, and address this section as “Literature Review.”

There is no set amount of words for a literature review; the length depends on the research. If you are working with a large amount of sources, then it will be long. If your paper does not depend entirely on references, then it will be short.

Most research papers include a literature review. By assessing the available sources in your field of research, you will be able to make a more confident argument about the topic.

Literature reviews are most commonly found in theses and dissertations. However, you find them in research papers as well.