Ph. D., St. Antony's College, Oxford, 1986. Professor at the Royal Holloway University, London. He was a member of the British delegation to the International Task Force for Intergovernmental Cooperation on Holocaust Education, Remembrance and Research and is currently an advisor to the Home Office on Holocaust Memorial Day as well as other UK and overseas NGOs. He served on the advisory board of the Imperial War Museum's permanent Holocaust exhibition and has made a number of radio documentaries for the BBC and acted as consultant for several historical programmes on television, including The Irving Trial (C4, 2000) and I Met Adolf Eichmann (BBC2, 2001). Alliance Family Professor of Modern Jewish Studies, University of Manchester, 1995. Parkes-Wiener Professor of 20'h Century European Jewish History and Culture, Southampton University, 1996. Member of the National Museums Director's Conference Advisory Committee on Spoliation of Art During the Holocaust, 1999. Foreign Member of Commission of Historians into Latvia During WW II, 1999. Member of International editorial board, Jewish History and Culture, 1998. Member of Research Board, Institute for Jewish Policy Research, 1996. Joint-editor of journal of Holocaust Education, 1995.

Publications include: The Final Solution: Origins and Implementation (1996), ed./writer, Lest We Forget. A History of the Holocaust (CD-ROM, 1996), co-ed., Belsen in History and Memory (1997), ed., Genocide and Rescue: The Holocaust in Hungary, 1944 (1997), Arthur Koestler: The Homeless Mind (1998). Eichmann. His life and crimes (2004)