The Cheng School Gao Style Baguazhang Manual: Gao Yisheng’s Bagua Twisting-Body Connected Palm, by Gao Yisheng (edited by Liu Fengcai). This illustrated Bagua manual covers lineage, history, and techniques of Gao Yisheng’s system, discusses the connection of Bagua to the I Ching (Yijing), The Book of Changes, and offers guidelines for practice of the Pre- and Post-Heaven 64 Palm sequences.