This manual is absolutely gigantic! A whopping 666 pages wrapped up in a beautiful hardbound volume, with dust jacket. Its material is very focused and centered on pharmacognosy, and the medical use of plant medicines. Not recommended for the light reader but a must have for every practitioner, student, teacher, and herbal healer. Sections include, an introduction to the principles and practices of herbal medicine, treatment approaches to the body system, and the marker compounds found in specific plants and their effects on the body. Those studying the science of herbal medicine should have this volume in their library.