introduction for review essay

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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.

The Guide to Literature Reviews

What is a Literature Review?
The Purpose of Literature Reviews
Guidelines for Writing a Literature Review
How to Organize a Literature Review?
Software for Literature Reviews
Using Artificial Intelligence for Literature Reviews
How to Conduct a Literature Review?
Common Mistakes and Pitfalls in a Literature Review
Methods for Literature Reviews
What is a Systematic Literature Review?
What is a Narrative Literature Review?
What is a Descriptive Literature Review?
What is a Scoping Literature Review?
What is a Realist Literature Review?
What is a Critical Literature Review?
Meta Analysis vs. Literature Review
What is an Umbrella Literature Review?
Differences Between Annotated Bibliographies and Literature Reviews
Literature Review vs. Theoretical Framework
How to Write a Literature Review?
How to Structure a Literature Review?
How to Make a Cover Page for a Literature Review?
How to Write an Abstract for a Literature Review?
Introduction

How to write a literature review introduction? Step by step

Important reminders when writing a review introduction.

How to Write the Body of a Literature Review?
How to Write a Literature Review Conclusion?
How to Make a Literature Review Bibliography?
How to Format a Literature Review?
How Long Should a Literature Review Be?
Examples of Literature Reviews
How to Present a Literature Review?
How to Publish a Literature Review?

How to Write a Literature Review Introduction?

Literature review introductions are vital because they provide a roadmap for the reader. Crafting a compelling literature review introduction is crucial in presenting your research question, the relevance of the study, and the context in which your research fits within the existing literature. This initial section captures the essence of your research and guides your reader through the journey of understanding the research problem and the solutions your study offers. They explain the importance of the study, highlight gaps in existing research, and establish the significance of the research question. By clearly outlining the focus of the literature review and the themes to be explored, the introduction helps readers understand the direction and research scope . This context is essential for comprehending the study's relevance in the broader field. A well-crafted introduction can engage the reader’s interest and encourage further topic exploration.

Writing a literature review introduction involves several key steps. Each step ensures that your introduction is coherent, engaging, and informative.

1. Start with a broad context

Begin your literature review introduction by presenting a broad overview of the specific topic. This sets the stage for your research and places it within a wider context. For example, if you are reviewing literature on climate change, start by discussing its global impact and relevance. Explain how climate change affects the environment, economy, and society. This broad context helps frame the specific research question within a larger perspective, making it more understandable and relevant to the reader.

2. Narrow it down

Once the broad context is established, narrow down to the specific aspects of the topic that your literature review will address. This helps focus the review and guide the reader through the key themes and ideas you will talk about. For instance, within the topic of climate change, you might focus on its impact on coastal ecosystems or agricultural productivity. By narrowing it down, you clarify the scope of your review and ensure that your analysis is precise and targeted.

3. Highlight the importance of the study

Write why your literature review is important. Discuss the gaps in existing literature and how your review will address these gaps. Emphasize the significance of your study in contributing to the field. Highlighting the importance of your study justifies your research and shows how your work advances understanding in the field. For example, if other studies on climate change have primarily focused on physical impacts, your review might explore socio-economic effects, thereby filling a crucial gap.

4. State the research question

Clearly state your research question. It provides a clear direction for your review and helps in organizing the literature reviewed. It also makes it easier for researchers to follow your argument. A well-defined question or thesis statement is the backbone for your literature review and guides the selection and evaluation of journal articles. It ensures that your review remains focused and relevant throughout.

5. Outline the structure of the review

Provide a brief overview of the structure of your literature review. Mention the main sections and key themes you will cover. This helps set expectations for the reader and provides a clear roadmap for the review. Outlining the structure at the outset helps to organize your thoughts and present them logically. It allows the reader to anticipate the flow of the review and understand how different sections are interconnected.

6. Discuss the methodology

If you are writing a literature review as a full paper, briefly discuss the methodology you used to select and evaluate the literature review. Explain how you identified relevant literature, the criteria for inclusion and exclusion, and the approach you took in reviewing the literature. This helps readers understand the rigour of your research process . Discussing the methodology introduces your approach to reviewing the literature and enhances trustworthiness.

7. Provide a summary of key findings

Summarize the key findings from the literature reviewed. Highlight the main theories, models, and concepts relevant to your research question. This contextualizes your research and demonstrates your understanding of the existing literature to other researchers. A summary of key findings provides a snapshot of what has been done in the field.

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When writing the literature review introduction, keep the following important reminders in mind:

Stay focused . Ensure that your introduction is focused on the specific topic and research question. Avoid diverging into unrelated areas. Staying focused ensures that your review remains relevant and coherent.
Be concise . Keep your introduction concise and to the point. Avoid unnecessary details and focus on the most relevant information. Conciseness enhances readability and keeps the reader engaged.
Use clear and precise language . Use clear and precise language to convey your ideas. Avoid jargon and complex sentences that may confuse the reader. Clear language makes your review accessible to a wider audience.
Provide a balanced view . Provide a balanced view of the existing literature. Acknowledge different perspectives and avoid misinterpretation. A balanced view enhances the trustworthiness of your review and demonstrates your credibility.
Make it coherent . Make sure your introduction flows logically and coherently. Use transitions to connect different sections and ideas. Coherence makes your review easy to follow and understand.
Cite scholarly sources . Use scholarly sources to support your claims and arguments. They are recognized sources and their content is trustworthy.
Revise and edit . Revise and edit your introduction to ensure clarity, coherence, and accuracy. Seek feedback from peers or mentors to improve your writing. Revision and editing are crucial for producing a polished and effective literature review introduction.

All literature reviews must include a well-written introduction as it provides a roadmap for the reader, highlights the importance of the study, and establishes the context in which your research fits within the existing literature. By following the steps outlined above and keeping the important reminders in mind, you can write an engaging and informative literature review introduction that effectively guides your readers through your research. A strong introduction attracts readers and provides a clear and comprehensive overview of your research. Writing a literature review introduction requires careful planning and attention to detail, but the effort pays off by laying a solid foundation for your research paper or literature review.