The best concept book for school grades and the CSAT: Maple Textbook

This is a single-volume textbook consisting of a concept book and a workbook, and has a repetitive flow of problems.
This textbook cultivates mathematical power through advanced and difficult problems of verification, transformation, and development, and is a textbook that cultivates complex thinking skills in preparation for not only school grades but also the National Federation of Mock Exams, the Evaluation Institute Mock Exams, and the College Scholastic Ability Test.
This is a must-read for anyone aiming for a perfect score or entering the top 4%.