That All Shall Be Saved: Heaven, Hell, and Universal Salvation

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

Tradition and Apocalypse: An Essay on the Future of Christian Belief

Conversations With God

All Things Are Full of Gods: The Mysteries of Mind and Life

Conversations with God - Book 3: An uncommon dialogue

A Splendid Wickedness and Other Essays

Conversations with God - Book 2: An uncommon dialogue

The Hidden and the Manifest: Essays in Theology and Metaphysics

Living Buddha, Living Christ 20th Anniversary Edition

Kenogaia (A Gnostic Tale)

Wicca: A Guide for the Solitary Practitioner

In the Aftermath: Provocations and Laments

On Guard: Defending Your Faith with Reason and Precision

The Story of Christianity

Seeking Allah, Finding Jesus: A Devout Muslim Encounters Christianity

Atheist Delusions: The Christian Revolution and Its Fashionable Enemies

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

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

Witchcraft: Theory and Practice