David Winston is an herbalist and ethnobotanist with over 40 years of training in Cherokee, Chinese, and Western/Eclectic herbal traditions. David is a founding/professional member of the American Herbalists Guild and has been in clinical practice for over 33 years. He is an herbal consultant to many physicians and other healthcare professionals throughout the U.S. and Canada. David is also the president of Herbalist & Alchemist, Inc. and founder and director of David Winston's Center for Herbal Studies and the Herbal Therapeutics Research Library. He is the author of numerous texts on herbal medicine, is an internationally known lecturer, and teaches frequently at medical schools, symposia, and herb conferences.