Interpreting the Qur'an: A Guide for the Uninitiated

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

Studying Islam: The Critical Issues

Living Buddha, Living Christ 20th Anniversary Edition

In Search of Muhammad

Wicca: A Guide for the Solitary Practitioner

Muslims and Modernity: Current Debates

On Guard: Defending Your Faith with Reason and Precision

In Search of the Sacred

Seeking Allah, Finding Jesus: A Devout Muslim Encounters Christianity

Islam as Imagined in Eighteenth and Nineteenth Century English Literature

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

In Search of Understanding: Reflections on Christian Engagement with Muslims after Four Decades of Encounter

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

In Search of Solutions: The Problem of Religion and Conflict

Witchcraft: Theory and Practice

Is the Bible God's Word?

The Lifetimes When Jesus and Buddha Knew Each Other: A History of Mighty Companions

Become What You Are: Expanded Edition