1. The Course of Olympic Mathematics, edited by Denton and Xiong Bin, is a textbook of synchronous mathematics competition published by People's Education Publishing House, which is suitable for synchronous learning. There are 9 Olympic Mathematics courses, 3 in each grade, namely Olympic Mathematics course, study manual and ability test. The ability test is an auxiliary exercise in each chapter, and it is also a study manual.

2. Junior high school volume of Mathematical Olympiad series (second edition) is an advanced course of Olympic mathematics. According to the classification of topics, the difficulty has been improved to a certain extent. Some chapters are suitable for learning high school competitions, which are closely related to the series of high school papers, and are almost a set of books that must be bought for learning math competitions.

3. Pre-test counseling for junior high school math league. After the above two sets of competitions are completed, they can be used as review materials. In the case of insufficient time and ability, I can only read this book and the methods and strategies for solving problems in junior high school mathematics competitions. The former is the summary of competition questions, while the latter is the summary of competition thinking.