The Stonehenge Enigma
Robert John Langdon
Die Pforten der Wahrnehmung
Aldous Leonard Huxley
The Cambridge History of the Romance Languages: Volume 1, Structures
Martin Maiden & John Charles Smith & Adam Ledgeway
Kundalini Rising
Ken Wilber & Gurmukh Kaur Khalsa & Sivananda Radha & John Selby & Andrew B. Newberg
From Dictatorship to Democracy: A Conceptual Framework for Liberation
Gene Sharp
Kinds of Minds
Daniel Clement Dennett