John is a recognized authority on Chinese herbal medicine and western pharmacology. Holding doctoral degrees from both USC School of Pharmacy and South Baylo University. He currently teaches at USC and numerous universities of traditional Chinese medicine. John actively participates in education and research and lectures widely at conferences at local, state, national, and international levels. He also appeared in the Discovery Channel six-hour documentary on complementary and alternative medicine in 1999. John is the author of three textbooks: Chinese Medical Herbology and Pharmacology, Chinese Herbal Formulas and Applications, and Chinese Herbal Formulas for Veterinarians.