G.I. Gurdjieff: The War Against Sleep

The Strange Life of P.D.Ouspensky

Rudolf Steiner: The Man and His Vision

Aleister Crowley: The Nature of the Beast

C.G.Jung: Lord of the Underworld

From Atlantis To The Sphinx: Recovering the Lost Wisdom of the Ancient World

Manhunters: Criminal Profilers and Their Search for the World?s Most Wanted Serial Killers

A Criminal History of Mankind

The Devil's Party: A History of Charlatan Messiahs

The Occult: The Ultimate Guide for Those Who Would Walk with the Gods

The Occult

A Plague of Murder

Beyond the Occult: Twenty Years' Research into the Paranormal

World Famous Cults and Fanatics

The Mind Parasites

The Outsider

Hunting Serial Killers: Criminal Profilers and Their Search for the World's Most Wanted Manhunters

A Casebook of Murder: A Compelling Study of the World's Most Macabre Murder Cases

Strange Powers

The Mammoth Encyclopedia of the Unsolved