A literature review can differ from other assignments, but it is basically a review, which defines the rationale and the preface regarding the primary research. It is essential that a literature review be included since it is mandatory in a research paper. The basic objective is to examine, while being very critical, a part of a published source from its classification, summary, and assessment by using previous research studies, theoretical studies, and assessment of literature.
Meanwhile, while writing the introduction, the scholar needs to define the main topic, the problem or the area or concern, which would give the necessary background for a literature review. The student needs to mention the basic trends which have been written about the topic; or evidence, methodology, conflicts in theory, and conclusions; or scholarship and gaps in research; or different view of immediate interest, or a unique problem. Moreover, the writer’s opinion and point of view needs to be established, the scope, the sequence, and the criterion for analyzing the literature needs to be mentioned.