A Brief History of Secret Societies

An unbiased history of our desire for secret knowledge

1997

Brief Guide to Secret Religions

2011

Graphology

1995

Runes

1995

Secret Societies

From the Ancient and Arcane to the Modern and Clandestine

1998

Tales from the Vatican Vaults

2015

The Atlas of Secret Societies

2009

The New Believers

A Survey of Sects, Cults and Alternative Religions

2001