We were really happy to discover this book in a mainstream bookstore, having not heard of it before. Its a great collection of information and references on a wide variety of psychoactive plants. The title “of Herbal Medicine” is slightly misleading as the entire book is about psychoactive herbs and plants. When I first picked it up, I assumed it was going to be more on less mind-oriented herbs. The book has sections on the common entheogens and covers them fairly well, although we found a few minor errors. One slightly unfortunate choice is that the references list at the end of the book is broken up by chapter, which makes it painful to look up references cited in the text. If they do a second edition of this book, I hope they can just strip out that odd and non-standard choice.