Literature review is an academic paper written by collecting a large amount of information on a certain topic and making comprehensive analysis. It is a scientific document.

The format of literature review is different from that of general research papers. This is because the research papers focus on research methods and results; Literature review requires readers to introduce detailed information, trends, progress, prospects and comments on the above aspects related to the theme.

There are various formats of literature review, but generally speaking, it includes the following four parts: preface, theme, summary and references.