Literature review is to explain, evaluate and summarize the published information. Literature review generally accounts for 20% of the whole thesis, that is to say, if your graduation thesis is 6,543.8+0,000 words, then the literature review part needs to be written about 2,000 words.

Generally, the number of words in literature review is controlled at about 4,000-6,000 words, about 8- 15 pages, with comments as the main content, and the literature cannot be listed. The basic format usually includes title, author, abstract, keywords, preface, text, conclusion and references. There are 15-20 Chinese references and about 20 English references. Literature should be updated, 50%-80% within 3 years.

Writing skills of literature review;

1. Literature review should not be a repetition, listing and general introduction of existing literature, but a critical analysis and comment on the advantages and disadvantages and contributions of previous studies. Therefore, the literature review should contain the dual meanings of comprehensive refining and analytical review.

2. Literature review should be concise, avoid quoting a large number of original texts as much as possible, make the author's views clear in his own language, and draw general conclusions from the original documents.

3. Literature review is not a database. It should closely focus on the "problems" of the subject research and ensure that the existing research results are directly related to the subject research. Its content is closely organized around the theme, which can not only systematically and comprehensively reflect the history, present situation and trend of the research object, but also reflect all aspects of the research content.

4. Literature review should be comprehensive, accurate and objective, and the opinions and arguments used for comments should preferably come from a single document, and try to avoid using others' explanations or reviews of the original documents.