Beyond Theology: The Art of Godmanship

Become What You Are: Expanded Edition

Psychotherapy East & West

Cold-Case Christianity: A Homicide Detective Investigates the Claims of the Gospels

The Two Hands of God: The Myths of Polarity

Living Buddha, Living Christ 20th Anniversary Edition

Zen: A Short Introduction with Illustrations by the Author

Wicca: A Guide for the Solitary Practitioner

Behold the Spirit: A Study in the Necessity of Mystical Religion

On Guard: Defending Your Faith with Reason and Precision

This Is It: and Other Essays on Zen and Spiritual Experience

Seeking Allah, Finding Jesus: A Devout Muslim Encounters Christianity

Nature, Man and Woman

Illuminati: The Secret Society That Hijacked the World (The History of One of the World's Most Notorious Secret Societies)

What Is Tao?

A History of Religious Ideas, Volume 2: From Gautama Buddha to the Triumph of Christianity

Tao: The Watercourse Way: The Watercourse Way

Is the Bible God's Word?

Cloud-hidden, Whereabouts Unknown: A Mountain Journal