Catholicism

The Great Popes

2018

Secret Files of the Inquisition

2006

En quête d'esprit

A Believer's Guide to...

2023

God in America

2010

Drive Thru History: The Gospels

2015

Drive Thru History: Acts to Revelation

2018

Drive Thru History: American History

Drive Thru History: Ancient History

Who Was Jesus?

2009

Spurensuche – Die Weltreligionen auf dem Weg

1999

Prayer and Reflection

2025

The Power of Myth

1988

Ancient Roads from Christ to Constantine

2015

Foundations: An Overview of Systematic Theology

1999

Atheism: A Rough History of Disbelief

2004

Jesus: The Evidence

1984

Bible's Buried Secrets

2011