Yang, Jwing-Ming, PhD, is a world-renowned author, scholar, and teacher. He has been involved in Chinese martial arts since 1961 and maintains over 55 schools in 18 countries. Dr. Yang's writing and teaching include the subjects of kung fu, tai chi chuan, massage, meditation, and chin na, and he is a leading authority on qigong. Dr. Yang is the author of over 35 books and 80 videos.