The Psychedelic Experience

The Psychedelic Experience: A Manual Based on The Tibetan Book of the Dead is a 1964 book about using psychedelic drugs that was coauthored by Timothy Leary, Ralph Metzner and Richard Alpert. All three authors had taken part in research investigating the therapeutic potential of psychedelic drugs such as LSD, psilocybin and mescaline in addition to the ability of these substances to sometimes induce religious and mystical states of consciousness. The book is described as a classic of 1960s psychedelic literature.