This is a very easy book to follow. Gives history of Liangong, some basic acupoint, meridian, and chi information, and an easy to follow discription of the 36 exercises which make up Liangong. Liangong is similar to chi kung, and is based on many old chi kung exercises. It is primarily used for healing and health maintnance and each exercise is designed to work a particular region or problem. Can be practiced anytime and used as a warm up for other activities, such as tai chi and other martial arts. Videos are available for further study.