P. D. Ouspensky was born in Moscow in 1878. His first book, The Fourth Dimension (1909), offered a contribution to mathematical theory; it was Tertium Organum (1912) and A New Model Of the Universe (1914) which revealed his stature as a thinker and his deep preoccupation with the problem of man’s existence. His meeting with Gurdjieff in 1915 marked a turning point in Ouspensky’s life. From this time his interest centred on the practical study of methods for the development of consciousness in man, as expounded in In Search of the Miraculous, The Psychology of Man’s Possible Evolution (both published after his death in 1947) and The Fourth Way (1957). These methods are also discussed in A Record of Meetings. Strange Life of Ivan Osokin, published in 1947, was Ouspensky’s only novel and he also wrote two short stories published as Talks with a Devil. Many of his books are published by Arkana, including Letters from Russia and Conscience: The Search for Truth, a collection of essays. P.D.Ouspensky died in England in 1947.