“. . . this superb academic reference is the first comprehensive work devoted to psychoactive plants. Ratsch, an anthropologist, ethnopharmacologist, . . . includes more than 400 traditional and modern substances that ‘affect the mind or alter the state of consciousness’. . . .Each major monograph contains the plant’s scientific and common names, chemical structure, history, distribution, cultivation, appearance, preparation and dosage, ritual and medicinal uses, commercial forms and regulations, and effects, as well as research literature references. . . .This book offers something for everyone. . . . Highly recommended.” (Andy Wickens, Library Journal, August 2005 )