Ancient Roads from Christ to Constantine

God in America

2010

The Great Popes

2018

Spurensuche – Die Weltreligionen auf dem Weg

1999

Atheism: A Rough History of Disbelief

2004

Foundations: An Overview of Systematic Theology

1999

The Power of Myth

1988

Bible's Buried Secrets

2011

Secret Files of the Inquisition

2006

Who Was Jesus?

2009

Drive Thru History: The Gospels

2015

Drive Thru History: Acts to Revelation

2018

Drive Thru History: American History

Drive Thru History: Ancient History

Catholicism

2012

The Bible Unearthed

2005

Bible Secrets Revealed

2013

2000 Years of Christianity

1999