This book summarizes the proven memory rules, includes various high-efficiency memory methods at home and abroad, and synthesizes the latest memory science achievements. Using lively and interesting examples, integrating the knowledge and principles of psychology, physiology, sociology, management, logic, etc., this book explores the methods and tricks of how to improve memory from three aspects: principle, training, and application. It provides powerful help and scientific guidance for readers to solve memory problems, break through memory barriers, and improve memory ability.