The teaching materials for comprehensive management of economy and management include Chen Jian's Guide to High Scores, Mathematical Volume for Technicians, Chen Jian's Question 1000, and Chen Jian's Tell the Truth. In the past ten years, the book "High Score Guide" has been reprinted and should have served millions of students. It can be equivalent to a mathematics textbook in the joint examination of management, and it is the book that can't stand the market test in the field of mathematics so far.