The most authoritative and practical mental development training in history, it has been a best-seller in the United States for 100 years, has been reprinted 306 times, and has sold more than 7 million copies! This book has 20 angles to train your mind in all aspects - mentality, habits, concentration, understanding, thinking, memory, imagination, hearing, vision, taste, smell... Based on details, the effect is remarkable! 300 Techniques to thoroughly develop your potential, including 8 good attitudes needed to cultivate a strong mind, 44 techniques to develop a good attitude, 55 general principles of mental training, 63 training methods to cultivate keen senses, 51 training methods to cultivate super thinking power, 76 techniques to improve interpersonal control... Clear and specific, and highly practical.
