Kava, the Pacific Elixir is a reprint from Yale University Press's excellent series, "Psychoactive Plants of the World," edited by Richard Evans Schultes and Robert F. Raffauf, and it maintains the high standards set by Johannes Wilbert's Tobacco and Shamanism in South America . This book covers the botany, chemistry, pharmacology, ethnobotany, anthropology, and economics of kava-technical, thorough, highly recommended.