***This paperback edition has a new introduction by the author and updated content.
The books form an interrelated suite of works that provide the reader with a unique, reliable, and often personal immersion in this medically, culturally, and spiritu.
This is the first volume of North Atlantic Books updated paperback edition of Dale Pendell s ``Pharmako`` trilogy, an encyclopedic study of the history and uses of psychoactive plants and related synthetics first published between 1995 and 2005. ***This paperback edition has a new introduction by the author and updated content