The Pocket Guide to the Saints

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

The Pocket Guide to the Popes: The Pontiffs from St. Peter to John Paul

Zealot: The Life and Times of Jesus of Nazareth

The Church: The Evolution of Catholicism

The Cost of Discipleship

Lives of the Saints: From Mary and St. Francis of Assisi to John XXIII and Mother Teresa

Ministry: A Theological, Pastoral Handbook

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

Lives of The Popes- Reissue: The Pontiffs from St. Peter to Benedict XVI

The Lamb's Supper: The Mass as Heaven on Earth

Report on the Church

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

God’s Vision for the Church: Loved, Redeemed, Transformed, Called

Learning Theology with the Church Fathers

The Gnostic Bible: Revised and Expanded Edition

Beyond Belief: The Secret Gospel of Thomas