The English Ordinal, Its History, Validity, and Catholicity

70 Ads to Save the World: An Illustrated Memoir of Social Change

Life Under Glass

The Pearl Upon the Crown

Zig Zag Zen: Buddhism and Psychedelics

Psychedelic Integration: Psychotherapy for Non-Ordinary States of Consciousness

Reclaiming the Commons: Biodiversity, Traditional Knowledge, and the Rights of Mother Earth

Secret Drugs of Buddhism: Psychedelic Sacraments and the Origins of the Vajrayana

Birth of a Psychedelic Culture: Conversations about Leary, the Harvard Experiments, Millbrook and the Sixties