Tim Cartmell began his training with the Chinese styles, including ten years of study in Taiwan and Mainland China. Among his teachers were Sun Jian Yun and Sun Bao An, the daughter and grandson of Sun Lu Tang. Tim is the translator of Practical Chin Na, the author of Effortless Combat Throws and the co-author of Xing Yi Nei Gong: Xing Yi Health Maintenance and Internal Strength Development. Tim is an Asian Full-Contact tournament champion, and a Brazilian Jiu Jitsu and submissions grappling champion. He currently runs the Shen Wu Academy of Martial Arts in Southern California.