Gurdjieff. An Approach to His Ideas
Michel Waldberg
Alan Turing: The Enigma
Andrew Hodges & Douglas R. Hofstadter
Jerusalem!
Tobias Churton
Introduction to the Study of the Hindu Doctrines
René Guénon
Energy Work: The Secrets of Healing and Spiritual Development
Robert Bruce
The a to Z of British Intelligence
Nigel West
The A to Z Guide Series (1)