Bob completed a publishing apprenticeship at Hutchinson and Co in London before travelling to Australia in 1962, where he was offered a position at Cassell Australia. He joined Penguin Books in Australia in 1971 as an editor, later becoming managing editor. Leaving Penguin in 1976, he became publishing director of Thomas Nelson Australia. In 1987, Bob sold his independent company Robert Sessions Publishing to Penguin, and rejoined Penguin Australia. In 1988 he became publishing director of Penguin Books, and during the last 20 years he has published a wide range of books for adults and children. Bob is currently chair of the Course Advisory Committee for the graduate diploma in editing and publishing at RMIT University, and is a board member of the Australian Film Institute, The Australian Book Review and MWF.