Colin Henry Wilson (born June 26, 1931) is a British writer.

He was born and brought up in Leicester. Wilson left school at 16 and worked at a variety of jobs while reading in his spare time. As a result of his readings he published The Outsider in 1956, which described a sense of alienation. The book was very successful and was a serious contribution to the popularization of existentialism in Britain. Wilson was labelled as an Angry Young Man, though he had little in common with other members of the group.

Wilson also published in 1980 The War Against Sleep: The Philosophy of Gurdjieff, a text concerned with the life, work and philosophy of G. I. Gurdjieff, which forms an accessible introduction to the Greek-Armenian mystic.

Wilson has also published fiction: Many novels, mostly detective fiction or horror fiction, the latter including several Cthulhu Mythos pieces. He has also written extensively about crime and various metaphysical and occult themes.

One of his novels, The Space Vampires, was made into the movie, Life Force.

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