Textbook Help is produced by Tianxing Education, which is a synchronous counseling reference book for senior high schools. According to the textbook version, it is divided into compulsory courses and elective courses, with relatively high comprehensive content. The content of each section and chapter is from textbook help-method help-college entrance examination help-homework help-teacher help, with distinct levels, step by step, from basic to high school, from textbook to college entrance examination, spiraling up, and knowledge and methods are the most comprehensive and detailed explanations. With the help of textbooks, knowledge points, questions, methods and test sites have been solved.