Ralph Metzner
 | Salvia Divinorum: A Western Approach (2022) Self |
 | The Way of the Psychonaut (2020) Self |
 | Neurons to Nirvana (2013) Self |
 | DMT: The Spirit Molecule (2010) Himself - Psychologist |
 | LSD: Problem Child and Wonder Drug (2009) Self |
 | Peyote to LSD: A Psychedelic Odyssey (2008) Self |
 | Turn On, Tune In, Drop Out (2007) The Voyager |
 | Entheogen: Awakening the Divine Within (2006) Himself |
 | Hofmann's Potion: The Pioneers of LSD (2002) Self |
 | How To Go Out of Your Mind: The LSD Crisis (1966) Himself |
 | The Psychedelic Experience (1965) Narrator |
