Jesus Conspiracies
2012
Leah Remini: Scientology and the Aftermath
2016
The Monastery
2005
Religions of the World
1998
Revelation
2020
Religious biographies
—
The Western Tradition
1989
Secret Files of the Inquisition
2006
Divine Women
2012
Heaven on Earth
2004
Christianity: The First 1000 Years
1998
Christianity: The Second Millennium
2000
100% Hindoe?
2016
På tro og Are
2010
2000 Years of Christianity
1999
Inside Scientology
2018
Religion of the World
2004
The Root of All Evil?
2006
In the Name of God: A Holy Betrayal
2023
Spurensuche – Die Weltreligionen auf dem Weg
1999