P.D. Ouspensky

• The Tarot
• Fragmentos de una enseñanza desconocida
• Op zoek naar het wonderbaarlijke
• Tertium Organum : A Key to the Enigmas of the World
• The Symbolism of the Tarot
• In search of the miraculous
• The Fourth Way, A Record of talks and Answers to Questions based on the tea chings of G.I. Gurdjieff