The review is to analyze the literature/research through summary, classification, and comparison. A good review does not summarize, it critically evaluates to give a clarity of piece of knowledge.

What is the need for a literature review?

A literature review may be helpful in the following things:

• It compares and contrasts each source with other applicable literature on the topic.
• It evaluates the source of literature.
• It indicates how each source has contributed to the whole body of the knowledge.
• It integrates the discussion.

Purpose of literature review.

The purpose of the literature review is to gain an understanding of the piece of research and its relevance to a particular source. It creates new ways to interpret the specific topic. It provides the foundation of knowledge and identifies the advanced areas of the topic. It also provides a relative need for additional research.

Types and components of literature review.

• Narrative literature review:- It is also referred to as a traditional literature review. It summarizes the body of the literature. The narrative review also talks about the conclusion of the topic and identifies gaps/inconsistencies in a body.
• A systematic literature review requires well-defined advanced work to most other types of reviews. Systematic literature can be divided into two categories: meta-analysis and meta-synthesis.
• Scoping literature review:- As the name suggests, it is used to identify the scope of literature on a certain topic.
• Theoretical literature review pivot on a theory that has been collected in regards to solving an issue, a concept, or a phenomenon.

Components of literature review.

• It contains the objective of the review.
• Overview of the topic under consideration.
• Categorization of sources.
• Discussion of its similarities with another source.

Structure of a literature review.

A literature review should have an introduction, the main body, and a conclusion.

• Introduction:- It should define your topic and provides a context. It also helps to establish the reasons. You should explain the organization in the introduction and include the review’s scope.
• Main body:- Main body should organize the literature based on themes. It should provide the relation between chosen topic and subject area.
• Conclusion:- The conclusion should summarize the important points of the body of the literature. It also should link the research to existing knowledge.

Conclusion.

A literature review writer defines the topic and scope of the subject. It analyzes, interprets, and discusses the research and conclusion of the source.