The book "Intellectual Development and Mathematics Learning" by Chongde Lin offers a comprehensive analysis of the development of intelligence and mathematical thinking over a span of 40 years of research. It introduces the theory of the 'Triangular Pyramid Structure of Thinking,' which the author developed independently, and highlights its application in the field of mathematics education. The content of the book is divided into several sections that address the nature of intelligence, developmental processes, and the relationship between intelligence and creativity. Additionally, it examines the structure of mathematical thinking in children and adolescents aged 0 to 18 years. The book provides methods to enhance thinking skills and the quality of intelligence through the learning of arithmetic. It concludes with an analysis of the development of mathematical thinking skills across different age groups and presents current research findings in this area. The combination of psychology, mathematics, and education makes this work a valuable resource for researchers, parents, and educators.