* The Very First Noel (1994)
* Who is God? (1996)
* Who is Jesus? (1998)
* Who is the Holy Spirit? (2000)
* The Case for Christ (1998)
* The Evidence for Heaven (2002)
* The Truth about Angels (2005)
* Why Believe in God? (2007)
* When God Goes to Starbucks (2008)
* Spiritual Journeys (2011)
* Everything You Ever Wanted to Know about God (2013)
Other Works:
* "The Jesus Seminar: A Review and Critique" (1995)
* "Why I Am Not a Christian" (1996)
* "The Case for Christian Atheism" (1997)
* "The Resurrection of Jesus: A Mythical Event?" (1998)
* "The Historical Jesus: A Scholar's Quest for the Real Man" (1999)
* "The Christ of Faith and the Jesus of History" (2000)
* "Is There a God?: A Debate between Richard Dawkins and Thomas Nagel" (2006)
* "Does God Exist?: The Argument for and against the Existence of God" (2008)
* "The Future of Faith: Where Atheists, Agnostics, and Believers Find Common Ground" (2011)