This is the first book ever published on the art of Tai Ji Quan, and remains a classic of Chinese martial arts literature. Written in 1919, it was the first illustrated, instructional manual detailing both the theory and practice of this unique style of Tai Ji Quan created by the author himself. It discusses the underlying philosophy, based on the Yin/Yang theory of the harmony of balancing extremes, and offers detailed explanations for each movement of the form.