Ian Hancock has written extensively on the political history of Uganda and of Southern Rhodesia/Rhodesia/Zimbabwe; and taught courses on imperial, colonial and African history at Monash University and on African, Australian and British history at the Australian National University.
He has published many entries on Liberal Party figures for the Australian Dictionary of Biography, including one on former Prime Minister Harold Holt. He has also published full-length biographies of former Prime Minister Sir John Gorton, former NSW Premier Nick Greiner, former federal Attorney-General and long-term leader of the NSW Bar Tom Hughes, and of Gorton's controversial and trail-blazing staffer, Ainsley Gotto. He is presently completing a co-authored biography of a Public Service mandarin, Sir Frederick Wheeler, who had major confrontations with Gough Whitlam and Malcolm Fraser.