Literature review is a comprehensive article that comprehensively reflects the historical background, predecessors' work, debate focus, research status and development prospect of related fields or topics on the basis of collecting a large number of literature materials for a certain research field or topic before the graduation thesis (design) begins. "Synthesis" refers to the comprehensive analysis and summary of documents and materials to make them more concise, clear and logical; "Description" refers to a more professional, comprehensive, in-depth and systematic review of the comprehensively sorted documents.

Write on a new page, with the title bold, centered and bold (the abstract title should not be the same as the title of graduation thesis as far as possible). In the table of contents, the word "abstract" is used and the page number is marked, and the subtitle inside the abstract is no longer reflected in the table of contents. Summarize the text format and refer to the graduation thesis (design) text format. Generally, it should include the following four parts: overview, theme, abstract and references. Summary: Mainly explain the purpose of writing, introduce related concepts, outline the scope, and briefly explain the current situation or focus of debate on related topics, so that readers can have a preliminary outline of the issues to be described in the full text. Body part: it is the main body of summary, with various writing methods and no fixed format. It can be summarized in chronological order and compared from different angles according to different problems. No matter which format is adopted, the collected documents should be summarized, sorted, analyzed and compared, and the historical background, present situation and development direction of related topics and comments on these issues should be made clear. In the theme part, we should pay special attention to representative, scientific and creative references and comments. Summary: similar to the summary of general papers, briefly summarize the theme of the full text, put forward my own opinions and predict the further development direction. References: It is the basis of graduation thesis (design) and research, and also the basis of writing literature review. Listing these references not only shows respect for the authors and references, but also provides clues for reviewers. The arrangement of references should have clear entries, standardized formats, convenient retrieval and accurate contents. The format of reference refers to the above-mentioned graduation thesis (design) reference format. The review requires more than 8 references.