Ever since Albert Einstein's general theory of relativity burst upon the world in 1915, some of the world's most brilliant minds have sought to decipher the mysteries bequeathed by that legacy. Einstein himself was resistant to its implications, and physicists, astronomers and cosmologists have quarrelled over his theory for years. Dr Thorne has produced the most authoritative and clear history of Einstein's legacy as it made its way through the increasingly political world of science. In 'Black Holes and Time Warps' he leads his readers through an elegant, always human, tapestry of interlocking themes, from black holes to time machines, coming finally to an informed answer to the great question: what principles control our universe and why do physicists think they know the things they know?