Salvia Divinorum: A Western Approach (2022)
The Way of the Psychonaut (2020)
Neurons to Nirvana (2013)
DMT: The Spirit Molecule (2010)
LSD: Problem Child and Wonder Drug (2009)
Peyote to LSD: A Psychedelic Odyssey (2008)
Entheogen: Awakening the Divine Within (2006)
Signs Out of Time: The Life of Archaeologist Marija Gimbutas (2004)
Hofmann's Potion: The Pioneers of LSD (2002)
Turn On, Tune In, Drop Out (1967)
How To Go Out of Your Mind: The LSD Crisis (1966)
The Psychedelic Experience (1965)
