Ba gua zhang, founded in the 1800s by Dong Hai Quan, ranks with xing yi quan and tai ji quan as one of the three orthodox 'internal' styles of Chinese martial art. 'Whirling Circles of Ba Gua Zhang' offers a detailed practical guide to this increasingly popular discipline and how it relates to Daoist ideology, along with historical accounts and legends of the ba gua masters. The training sections give a complete warm-up, followed by a step-by-step program for learning the essentials of the practice. The classical Cheng Style Basic Eight Palm changes are presented in their entirety. The theory of ba gua fighting techniques and combat strategies are explored, along with a complete account of the unique weapons of ba gua zhang. The final section explains how to use mindfulness, breathing techniques, and meditation to recognize and combine the essential eight tigrams of the Yi Jing, the 'Book of the Change'.