While W.K. Hancock may no longer be described as 'Australia's most distinguished historian', he has some enduring claims to our attention. No other Australian historian and few elsewhere can match his 'span', to use one of his watchwords. Hancock was a major historian in four or five fields, who himself made history by going on a mission to Uganda for the British government in 1954 to mediate the future of Buganda after its ruler had been exiled. He was also, from a room in the Cabinet Office in Whitehall, the editor of a vast historical project: the writing of a series of accounts of British mobilisation on the home front during the Second World War. In addition, Hancock was a founder of the Australian National University, while his Australia (1930) remains one of the classic accounts of this country. A Three-Cornered Life is a superbly written and thorough biography of one of the finest twentieth century historians.