“Our objective in presenting this volume was to produce an encyclopedia about a particular group of psychedelic drugs, the phenethylamines. Phenethylamines are drugs with profound mind-altering properties that we find both fascinating and rewarding. It is our conviction that the various potency, duration, and character of these many compounds should be explored further, so that they may be rated as to efficacy and safety, and become practical tools in the work of medical professionals and lay therapists, as well as in the hands of spiritual guides and seekers.”