Salvia Divinorum: A Western Approach

2022

The Way of the Psychonaut

2020

Neurons to Nirvana

2013

DMT: The Spirit Molecule

2010

LSD: Problem Child and Wonder Drug

2009

Peyote to LSD: A Psychedelic Odyssey

2008

Entheogen: Awakening the Divine Within

2006

Signs Out of Time: The Life of Archaeologist Marija Gimbutas

2004

Hofmann's Potion: The Pioneers of LSD

2002

Turn On, Tune In, Drop Out

1967