LIU Yan, born in 1941, professor. He is he vice-president of needling and moxibustion branch of Chinese Association of Acupuncture and Moxibustion. He is accomplished in treating various diseases in clinic, and his lectures in USA and Thailand were welcomed greatly. He has published about 50 academic articles and over 20 monographs such as Chinese Natural Therapy, Chinese Collection of Extra-ordinary Points, Chinese Collection of Movement-needling Technique.