This book is of great importance to all tai chi chuan enthusiasts, whatever school or style they follow. The two main texts, that are presented here are at the core of the traditions that emanated from the Imperial Guard after the fall of the Ching Dynasty in 1911. The older of the two texts, “The Explanation of Tai Chi Methodology” was published in full in Chinese for the first time only in the 1980 edition of this book. It was transcribed by my Great Great Grandfather founding Master Wu Chuan Yau, after he became a disciple of Yang Ban Hou at Prince Sweh Fang’s palace. It has been in the Wu family for over 125 years. The second text was written by Master Wu Kung Cho in 1935 and amended in 1980.