Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Michael Tierra is an herbalist and acupuncturist who has been in clinical practice in Santa Cruz, California for nearly thirty years. He integrates Chinese, Western and Ayurvedic herbal medicine and acupuncture. He is a founder of the American Herbalists Guild and is the author of numerous books including The Way of Herbs and Planetary Herbology.