This book is at least well illustrated. Yes, it's good. For me, the reviews I most like are those that mention similar books, so I'll do that.
There Are No Incurable Diseases: Dr. Schulze's 30-Day Cleansing & Detoxification Program, School of Natural HealingHerbal Home Health Care, Herbal Healing for Women, Complete Medicinal Herbal (Natural care) can round this out, on the herbal side. Healing For The Millions would also help. Books are fine. One needs to get out and work with the plants, though, to really understand this.