Ralph Metzner

6.2

DMT: The Spirit Molecule

2010

-

The Psychedelic Experience

1965

7.0

Neurons to Nirvana

2013

-

Salvia Divinorum: A Western Approach

2022

5.0

Entheogen: Awakening the Divine Within

2006

5.6

Peyote to LSD: A Psychedelic Odyssey

2008

7.0

How To Go Out of Your Mind: The LSD Crisis

1966

5.6

Hofmann's Potion: The Pioneers of LSD

2002

6.5

The Way of the Psychonaut

2020

7.0

LSD: Problem Child and Wonder Drug

2009

-

Signs Out of Time: The Life of Archaeologist Marija Gimbutas

2004

7.0

Turn On, Tune In, Drop Out

1967