Credo: The Apostles' Creed Explained for Today

The Case for Christ: A Journalist's Personal Investigation of the Evidence for Jesus

What I Believe

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

Women in Christianity

The Holiness of God

Disputed Truth: Memoirs Volume 2, Volume 2

Seeking Allah, Finding Jesus: A Devout Muslim Encounters Christianity

The Catholic Church: A Short History

The Reason for God: Belief in an Age of Skepticism

Tracing The Way: Spiritual Dimensions of the World Religions

Is God a Moral Monster?: Making Sense of the Old Testament God

Global Responsibility: In Search of a New World Ethic

Goliath Must Fall: Winning the Battle Against Your Giants

Eternal Life?: Life After Death as a Medical, Philosophical, and Theological Problem

God's Crime Scene: A Cold-Case Detective Examines the Evidence for a Divinely Created Universe

Theology for the Third Millennium: An Ecumenical View

No God but One: Allah or Jesus? (with Bonus Content): A Former Muslim Investigates the Evidence for Islam and Christianity

Can We Save the Catholic Church?

On Guard: Defending Your Faith with Reason and Precision