I am Professor of Historical Geography at the University of Sussex in the UK and Adjunct Professor of History at La Trobe University in Australia. I have been researching, writing about and teaching the British Empire for over thirty years. My books include Imperial Networks (2001), Colonial Lives Across the British Empire (ed. with David Lambert, 2006), Colonisation and the Origins of Humanitarian Governance (with Fae Dussart, 2011), Ruling the World (with Kate Boehme and Peter Mitchell, 2021) and Deny and Disavow (2022). I am co-editor of the Manchester University Press Studies in Imperialism series, which has published well over 170 monographs. I am a Fellow of the Royal Historical Society, gave the latest Distinguished Historical Geography Lecture at the Association of American Geographers Conference and have held visiting fellowships in Australia, New Zealand and South Africa.