Ralph Metzner

The Psychedelic Experience

Why?

The Unfolding Self

Searching for the Philosophers' Stone

Sacred Mushroom of Visions: Teonanácatl

The Ayahuasca Experience

The Psychedelic Reader : Classic Selections from the Psychedelic Review, The Revolutionary 1960's Forum of Psychopharmacological Substances

Maps of Consciousness (Unabridged)

Metamorphosis