By Nancy Zi. 5.5" x 8.25", 240 pg, paperback. This acclaimed classic shows you how to transform breathing into vital energy to attain a perfect balance of body, mind, and spirit. Classical singer and chi kung (qigong) expert, Nancy Zi guides you through chi yi (the art of breathing) in six simple lessons. Using 24 progressive exercises (93 illustrations) and mental imagery drills, one can really learn how to obtain better health and vitality with this excellent work.