Ralph Metzner

DMT: The Spirit Molecule

Self - Psychologist

Salvia Divinorum: A Western Approach

Self

Peyote to LSD: A Psychedelic Odyssey

Self

Neurons to Nirvana

Self

The Way of the Psychonaut

Self

Hofmann's Potion: The Pioneers of LSD

Self

The Psychedelic Experience

Narrator

LSD: Problem Child and Wonder Drug

Self

Signs Out of Time: The Life of Archaeologist Marija Gimbutas

Self

Turn On, Tune In, Drop Out

The Voyager

How To Go Out of Your Mind: The LSD Crisis

Himself

Entheogen: Awakening the Divine Within

Self