1. Before searching related literature, you need to have a clear theme. If you are writing a paper or a literature review part of a research paper, search for research questions and related questions. If you write a literature review in the form of an independent assignment, you must choose a main point and ask a central question to guide the search.

2. Evaluate the source. You may not be able to read all the articles on this topic, so you must evaluate which articles are most relevant to your own problems. Make sure that the resources used are reliable and that you have read any landmark research and major theories in your research field.

You can find an article about Google Academic and see how many times it has been cited. A large number of citations mean that this article is influential in this field, and of course it should be included in your own literature review.

3. In order to determine the theme, controversy and blank, and organize the argument and structure of literature review, it is necessary to understand the connection and relationship between the materials read. Based on reading and notes, help to develop the structure of literature review and show how your research will contribute to existing knowledge.

4. Outline the structure. There are various ways to organize the main body of literature review. Before you start writing, you should have a general understanding of your strategy. According to the length of literature review, these strategies can be combined.