The following books and essays are available for free online. Explore the MAPS Store for more books.
History of Psychedelic Therapy
Handbook for the Therapeutic Use of Lysergic Acid Diethylamide-25: Individual and Group Procedures
by D.B, Blewett, Ph.D., and N. Chwelos, M.D. (1959)
The Secret Chief Revealed
by Myron Stolaroff (1997/2004).
Psychedelics and Culture
Drugs & Mysticism: An Analysis of the Relationship between Psychedelic Drugs and Mystical Consciousness
by Walter Norman Pahnke. Ph.D. Thesis, Harvard University. (June 1963) (“The Good Friday Experiment”) Also available as a pdf
by Stewart Mosher (2012).
Ethnomycological Journals: Sacred Mushroom Studies (Volume IX)
by John W. Allen, Prakitsin Sihanonth, Jochen Gartz, and Gianluca Toro (2013).
Guided by the Moon: Shamanism and the Ritual Use of Ayahuasca in the Santo Daime Religion in Brazil.
by Edward McRae, PhD. Courtesy of the Núcleo de Estudos Interdisciplinares sobre Psicoativos (NEIP).
The Sacred Voyage: The Pilgrimage to the Soul
by Lars Faber (2006)
The Yage Drinker
by Fernando Payaguaje. (Donations will be forwarded to Pablo Yepez of the VIHOMA Foundation, who manages a small fund that supports Secoyas in need of medical treatment in Quito, Ecuador.)
The Doors of Perception and Heaven and Hell
by Aldous Huxley (1954, 2009)
Ketamine: Dreams and Realities
by Karl Jansen, M.D., Ph.D. (2000, 2004)
The Road To Eleusis: Unveiling the Secret of the Mysteries
by Carl A. Ruck, Albert Hofmann, R. Gordon Wasson, Jeremy Bigwood, Jonathan Ott, Carl A. P. Ruck, Huston Smith, and Danny Staples.
Thanatos to Eros, 35 Years of Psychedelic Exploration
by Myron Stolaroff (1994)
Through the Gateway of the Heart : Accounts of Experiences with MDMA and other Empathogenic Substances
edited by Sophia Adamson and Ralph Metzner (1985)