For more than 44 years, John W. Allen, has been an amateur, untiring, and knowledgeable ethnomycologist specializing on psychoactive specie. John as studied, photographed, and lectured locally, nationally, and internationally on the history of the visionary fungi.  He has authored or coauthored 14 books, focused on these fungi, including two published by Ronin Publishing, Inc. Berkeley, CA. John has also served as editor and publisher of Ethnomycological Journals: Sacred Mushroom Studies Vols. I-XI; and he has published many academic papers and popular magazine articles concentrating on the past history and contemporary ingestion of these fungi; many of his publications remain of interest to may professional people as well as sizable percentage of the lay population. John W. Allen's new profusely illustrated, 10th edition of his very popular field guide (first published in 1976) will be well received by the large and growing number of people interested in the psilocybine producing mushrooms of the Pacific Northwest region of North America.  

Mark D. Merlin, Ph.D.----Author of On the Trail of the Ancient Opium Poppy. and co-author of Kava: The Pacific Drug, and Cannabis: Evolution and Ethnobotany.

John W. Allen's contributions to the world of entheogenic mushrooms are legendary.  this full colored 10th edition is a long-awaited and welcome addition by an esteemed pioneer who walked the psychedelic path with Gaston Guzman, Terence McKenna and Timothy Leary.

Robert Dale Roger. ----Author of Psilocybin Mushrooms: The Magic, Science, and Research.