A literature review, in essence, identifies, analyses, and synthesises significant literature in a certain field of study. It elucidates how knowledge has progressed in the field, highlighting what has already been done, what is widely recognised, what is new, and what the current state of thought is on the subject. A literature review also reveals a research gap (i.e. undiscovered or under-researched areas) and articulates how a particular research effort fills this need in research-based writings such as a Doctoral thesis. A collection of published information/materials on a specific area of inquiry or topic, such as books and journal articles of academic merit, is referred to as literature. Your literature review, on the other hand, does not need to include every paper and book written on your topic because it would be too wide. Rather, it should comprise the most important sources relating to the major arguments, trends, and gaps in your field of study. A literature review is much more than a list of important sources. In order to acquire a broad understanding of the area, reviewing entails assessing individual sources as well as synthesising various sources.
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