What is a Literature Review

A literature review is the process of searching for and evaluating the available literature on a particular subject or topic area. It establishes the state of the art in relation to the subject or topic being discussed.

The Primary Purposes of  literature Review

It conducts a review of the literature in your chosen field of study.
It summarizes the information contained in that literature.
It conducts a critical analysis of the data gathered by identifying gaps in current knowledge, demonstrating the limitations of theories and points of view, and formulating areas for additional research and reviewing areas of contention.
It organizes the literature.

A literature review’s structure

A literature review should follow the same structure as any other essay: it should begin with an introduction, continue with a middle or main body, and conclude with a conclusion.

Introduction
The introduction should include the following:

define your subject and provide a context for conducting a literature review;
Establish your rationale – i.e. point of view – for conducting the review; describe the review’s organization – i.e. sequence;
Indicate the review’s scope – that is, what is included and what is not included. For instance, if you were conducting a review of the literature on childhood obesity, you might state something like this: There are numerous studies on obesity trends in the general population. However, because the focus of this research is on childhood obesity, these will not be discussed in detail and will be referred to as necessary.
The principal body
The central or primary body should:

Arrange the literature according to common themes; shed light on the relationship between your chosen subject and the broader subject area, for example, the relationship between childhood obesity and obesity in general;
proceed from a broad, overarching view of the literature to the specific focus of your research.
Conclusion
The conclusion should include the following:

summarize key aspects of the existing body of literature; evaluate the current state of the literature reviewed; identify significant flaws or gaps in existing knowledge; outline areas for future research;
establish a connection between your research and existing knowledge.

Two Structures For A Literature Review

Frequently, students underestimate the critical nature of adhering to the proper structure when conducting a literature review. This is a significant error that can cost you a grade, which is why it is critical to understand how to structure it properly. What constitutes an appropriate structure? There are two primary methods for writing a literature review for me, and our literature review assistance services employ both. These are referred to as chronological and thematic methods. They each have their own distinct characteristics, but both can be used effectively to structure and organize your text.

Review of the Thematic Literature

This method of data organization is based on classifying various sources of literature according to their subject and theoretical concept and then ranking them according to their relevance and importance. Numerous students opt for this structure. Others argue that organizing a review in this manner, rather than chronologically, helps students strengthen their review by requiring them to analyze the topics, theories, and concepts central to their investigation.

Additionally, it requires you to explain why certain sources are linked to one another, which is typically accomplished through a relevant title in each category. There is no one-size-fits-all rule for selecting the proper sequence. However, it would be prudent to order the categories from most significant (broad) to most specific in order to keep things clear and understandable.

The Chronological Review of the Literature

If you prefer to organize your data chronologically, you must list your sources chronologically (e.g. by the date each source was published). It lacks the strength of the thematic review. However, it may be more appropriate in some instances. This method is ideal for historiographical works and other reviews that place a greater emphasis on the investigation methodology or the evolution of a particular issue over time.

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