Cheng Man Ch'ing published T'ai Chi, the Supreme Ultimate Exercise for Health, Sport and Self-Defence in 1967. He wrote over a dozen other books on many subjects, including the I Ching, the Tao Te Ching, the Analects of Confucius, as well as poetry, essays, and medicine. He died in 1975 at age 73.
I've got my hands on a treasure now, called Cheng Tzu's Thirteen Treatises on T'ai Chi Ch'uan by Cheng Man Ch'ing. Explained in plain words and illustrated with pictures of the form, the book will satisfy the needs of anyone interested in T'ai Chi. It will take your understanding of the art to a new level, and it will guide you to correct practice. It will also introduce you to the Classics and challenge you to achieve. -dkMommy Spot