Creating the Qur’an: A Historical-Critical Study

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

A Prophet Has Appeared: The Rise of Islam through Christian and Jewish Eyes, A Sourcebook

Zealot: The Life and Times of Jesus of Nazareth

Ancient Traditions of the Virgin Mary's Dormition and Assumption

The Cost of Discipleship

The Quest of the Historical Muhammad and Other Studies on Formative Islam

The Holy Rosary

The New Testament in Its World: An Introduction to the History, Literature, and Theology of the First Christians

Hail, Holy Queen

The Pilgrim's Progress: From This World to That Which is to Come

The Secret of the Rosary

My Daily Prayers

Learning Theology with the Church Fathers

The Little Office of the Blessed Virgin Mary

The Gnostic Bible: Revised and Expanded Edition

Beyond Belief: The Secret Gospel of Thomas

The Secret of Mary

Becoming Divine: An Introduction to Deification in Western Culture