2000 Years of Christianity

The Great Popes

2018

A Believer's Guide to...

2023

God in America

2010

Secret Files of the Inquisition

2006

Jesus: The Evidence

1984

The Power of Myth

1988

Atheism: A Rough History of Disbelief

2004

Drive Thru History: The Gospels

2015

Drive Thru History: Acts to Revelation

2018

Drive Thru History: American History

Drive Thru History: Ancient History

Jesus the Game Changer

2016

Who Was Jesus?

2009

Ancient Roads from Christ to Constantine

2015

Spurensuche – Die Weltreligionen auf dem Weg

1999

Prayer and Reflection

2025

Foundations: An Overview of Systematic Theology

1999

Bible's Buried Secrets

2011