The three Internal arts recognized in China are Tai Ji Ch'uan, Pa-Kua Zhang, and Hsing-I Ch'uan. This book focuses on a modified version of Hsing-I Ch'uan, created by the legendary Grandmaster Ch'ang Tung Sheng. Its purpose is to reveal, for the first time, the movements of Hsing-Jing Ch'uan and some of the applications for defense.
Ch'ang Style Hsing-Jing Ch'uan is a style based on older, more traditional styles of Hsing-I. Hsing-Jing Ch'uan was Ch'ang’s innovative approach to making Hsing-I Ch'uan more effective for defense.