If I should chose one and only one book which marked me and changed my view of the world as a whole and my understanding of esoteric teachings, without any hesitation I would pick Ouspensky’s “In Search of the Miraculous”. Ouspensky managed to synthesize and systematize the essence of Gurdjieff’s teachings perfectly and accessible for anybody. Read more P. D. Ouspensky – In Search of the Miraculous