Professor Zhang teaches Chinese culture, calligraphy, chi gung, martial arts, and Tui Na massage in Seattle. He has published many previous books in Chinese. This is his first English-language publication. Richard Shapiro lives in Mesa, AZ, where he practices and teaches Bagua Zhang and Tai Chi, and practices Tui-Na bodywork. With a master's degree in sports science/sports psychology, he has been training in martial arts since 1992.