Secret Files of the Inquisition
2006
I grandi Papi
2018
Spurensuche – Die Weltreligionen auf dem Weg
1999
Prayer and Reflection
2025
Who Was Jesus?
2009
Foundations: An Overview of Systematic Theology
1999
Jesus: The Evidence
1984
Atheism: A Rough History of Disbelief
2004
Des nouvelles de Dieu
2004
Bible's Buried Secrets
2011
Le vrai pouvoir du Vatican
2010
Bible Secrets Revealed
2013
