Cleansing the Doors of Perception

Huston Smith Professor Emeritus Unive

The Road to Eleusis: Unveiling the Secret of the Mysteries.

R. Gordon Wasson (Author), Albert Hofmann (Author), Carl A. P. Ruck (Author), Huston Smith (Preface), Peter Webster (Afterword)

Psychoactive Sacramentals: Essays on Entheogens and Religion

Stanislav Grof (Author), Huston Smith (Author), Albert Hofmann (Author), Charles T. Tart (Author), Alexander T. Shulgin (Author), Mike Young (Author), Roger N. Walsh (Author), Frances Vaughan (Author), Thomas B. Roberts (Editor), David Steindl-Rast (Foreword)

Entheogens and the Future of Religion

Robert Forte (Editor)