• The Cosmic Serpent – Jeremy Narby, Ph.D
• Antipodes Of the Mind: Charting the Phenomenology of the Ayahuasca Experience– Benny Shanon, Ph.D
• Sacred Vine of Spirits: Ayahuasca – Ralph Metzner, Ph.D
• The Fellowship of the River: A Medical Doctors Exploration into Amazonian Plant Medicine – Joseph Tafur, M.D
• Singing To the Plants: A Guide to Mestizo Shamanism in the Upper Amazon: Steve V. Beyer, Ph.D
• Ayahuasca Shamanism in the Amazon And Beyond (Oxford Ritual Studies) – Bia Labate, Ph.D & Dr. Clancy Cavnar

• Sacred Mushroom Of Visions: Teonanacatl – Ralph Metzner, Ph.D (Editor)
• Teonanacatl: Sacred Mushrooms of North America – Jonathan Ott & Jeremy Bigwood (Editors)
• Psilocybin Mushrooms of the World: An Identification Guide – Paul Stamets
• The Psilocybin Solution: The Role of Sacred Mushrooms in the Quest for Meaning – Simon G. Powell
• Mushrooms, Myth and Mithras: The Drug Cult that Civilised Europe – Carl Ruck, Ph.D
• The Sacred Mushroom and the Cross – John M. Allegro

• LSD: My Problem Child – Albert Hofmann, Ph.D
• LSD: Doorway to the Numinous – Stanislav Grof, Ph.D
• The Trials of Psychedelic Therapy: LSD Psychotherapy in America – Matt Oram, Ph.D
• Acid Dreams: The Complete Social History of LSD – Martin A. Lee & Bruce Shlain
• LSD and the Mind Of the Universe: Diamonds From Heaven – Prof. Christopher Bache

• Mescaline: A Global History of the First Psychedelic – Mike Jay
• Peyote: History, Tradition, Politics and Conservation – Bia Labate, Clancy Cavnar (editors)
• Peyote Religion: A History (Volume 181. The Civilization of the American Indian series) – Omer C. Stewart
• San Pedro Huachuma – Opening the Pathways of the Heart – Javier Regueiro

• Shamanism: The Archaic Techniques of Ecstasy – Mircea Eliade
• Shamanism; 500 Years on the Path To Knowledge – Jeremy Narby, Ph.D
• The Way of The Shaman – Michael Harner, Ph.D
• Where The Gods Reign: Plants and Peoples of  the Colombian Amazon – Richard E. Schultes, Mark J. Plotkin
• The World of Shamanism: New Views on Ancient Traditions – Roger Walsh, Ph.D
• Shamanic Voices: A Survey of Visionary Narratives – Joan Halifax, Ph.D

• The Long Trip: A Prehistory of Psychedelia – Paul Devereaux, Ph.D
• PiHKAL – Ann & Sasha Shulgin
• TiHKAL – Ann & Sasha Shulgin
• The Psychedelic Explorers Guide – Dr. James Fadiman
• Manifesting Minds: A Reviews of Psychedelics in Science, Medicine, Sex and Spirituality – Rick Doblin, Ph.D (Editor)
• Plant Medicines, Healing and Psychedelic Science: Cultural Perspectives – Bia Labate, Ph.D, Clancy Cavnar, Ph.D
• Plants of the Gods: Their Sacred, Healing and Hallucinogenic Powers – Richard Evans Schultes, Albert Hofmann, Christiaan Ratsch
• Psychedelic Medicine: The Healing Powers of LSD, MDMA, Psilocybin and Ayahuasca– Richard Louis Miller, Ph.D