Ralph Metzner
El Verano: Four Trees Press, 2013.

Bufo alvarius and 5-methoxy-dimethyltryptamine. With forewords by Stanislav Grof and Charles Grob. “In this monograph, I relate findings from more than 30 years of experiences and observations with this substance, in various user groups and individuals, both in the US and in Europe. I use the term underground in referring to the explorations with these substances, in the sense that they were hidden – out of respect for the restrictions and prohibitions of mainstream culture. These are ethnographic field reports: first-hand observations from an underground sub-culture, accompanied by the experiences of a selected number of participant-observers. It is important to recognize that in research with these and other so-called psychedelic or entheogenic substances, one cannot limit the observations and reflections solely to their physical and psychological effects. As most of the people cited here emphasize, the experiences with these substances at times can go far beyond their physical and psychological effects into the deepest and highest dimensions of our existence, both the cosmic and the spiritual.” (publisher’s blurb)

Ralph Metzner
El Verano: Four Trees Press, 2020.

“Ralph Metzner first wrote about alchemy when he was in his early 30s. He included a chapter on alchemy in his book Maps of Consciousness, which was published in 1971. In the last few years of his life Ralph recorded his thoughts on some 36 alchemical terms. Over an arc of some 50 years, Ralph worked on the practice of using alchemical processes for inner transformation. This volume of musings combines his earliest writing on alchemy with his last writings on alchemical terms, bookends of an arc of exploration.” (publisher’s blurb)

Ralph Metzner
El Verano: Four Trees Press, 2022.

“This monograph is based on 50 years of experience as a participant-observer in the international underground sub-culture involved with entheogenic, consciousness-expanding substances. The author discusses the uses and values of such substances when the explicit intention or purpose is for spiritual awakening, psychotherapy, healing, increased understanding and the enhancement of creativity. The intent of this documentation is not to prove or promote any particular method or treatment of any condition. The evaluation of entheogens needs to be in terms of how productive these experiences are of healthier approaches to the issues of living in these times, in this world.” (publisher’s blurb)

Andy Roberts
Vale of Pewsey: Psychedelic Press, 2025.

“Doctors believed LSD was a panacea for disorders of the mind. The Secret Intelligence Services and Ministry of Defence were confident they could harness the drug’s powers for interrogation and the battlefield. Countercultures celebrated acid as not only a hotline to spiritual experience, but also a wonderland of the senses. Governments decried it. LSD remains protean. Andy Roberts’ Albion Dreaming tells the extraordinary story of how LSD helped shape British society and culture since its introduction in the early 1950s. First published in 2008, this new and revised edition benefits from the author’s many years of continued research into psychedelic history and the addition of several appendices.” (publisher’s blurb) The sold out hardcover printing of the revised edition.

Julian Vayne
Vale of Pewsy: Psychedelic Press, 2025.

“Trip Sitting is your essential guide for supporting safe, meaningful psychedelic journeys. Informed by cutting-edge science and extensive real-world experience, this book offers practical insights into the skills, techniques, and mindset that every effective trip sitter needs. From preparing the space and setting the tone, to navigating the journey and supporting successful integration, Trip Sitting takes a holistic approach to care. With a strong foundation in ethics and practical experience this guide will help you hold space with clarity, confidence, and compassion, maximising the benefits and minimising the risks when exploring these magical medicines.” (publisher’s blurb)