- Introduction to Pharmacology, Third Edition (Paperback)
- Marijuana Medicine: A World Tour of the Healing and Visionary Powers of Cannabis
- Heavier than Heaven
- Beyond the Brain: Birth, Death, and Transcendence in Psychotherapy
- Pharmacotheon: Entheogenic Drugs, Their Plant Sources and History
- A Psychonaut's Guide to the Invisible Landscape: The Topography of the Psychedelic Ex
- The Medicinal Uses of Cannabis and Cannabinoids
- Marching Powder
- Higher Wisdom
- Flashback
- Ayahuasca: The Visionary and Healing Powers of the Vine of the Soul
- Down the highway: The life of Bob Dylan
- Tweak: Growing up on Methamphetamines
- Memoirs - A Piece of Cake: A Memoir
- Medical - Dying to Get High: Marijuana as Medicine
- Medical - Receptors
- History - Storming Heaven: LSD and the American Dream
- Remember, Be Here Now
- The Brotherhood of Eternal Love: From Flower Power to Hippie Mafia:
- Spirituality - The Sabbats: A New Approach to Living the Old Ways
- Other-Fiction - Shantaram
- Other-Fiction - Trainspotting
- Novel - Junky - William S. Burroughs
- Reference - Peyote: The Divine Cactus
- Naked Lunch
- Short Stories - White Lines : Writers on Cocaine
- Science - Holographic Universe
- Nature - Dank: the Quest for the Very Best Marijuana
- Novel - Rant: The Oral Biography of Buster Casey