T'AI-CHI (The "Supreme Ultimate" Exercise for Health, Sport, and Self-Defense)      By Cheng Man-ch'ing and Robert W. Smith  T'AI CHI CH'UAN (Simplifiled Calisthenics for Health & Self-Defense)      By Cheng Man-ch'ing  TAI CHI HANDBOOK (Exercise, Meditation, and Self-Defense)      By Herman Kauz  CHENG TZU'S THIRTEEN TREATISES ON T'AI CHI CH'UAN      By Professor Cheng Man-ch'ing      Translated by Benjamin Pang Jeng Lo  THE ESSENCE OF T'AI CHI CH'UAN (The Literary Tradition)      By Benjamin Pang Jeng Lo  T'AI CHI CH'UAN TA WEN (Questions and Answers on T'ai Chi Ch'uan)      By Chen Wei-Ming      Translated by Benjamin Pang Jeng Lo and Robert W. Smith  THERE ARE NO SECRETS      By Wolfe Lowenthal  GATEWAY TO THE MIRACULOUS      By Wolfe Lowenthal  LAO-TZU: "My words are very easy to understand." (Lectures on the Tao Teh Ching)      By Professor Cheng Man-ch'ing      Translated by Tam C. Gibbs