Professor Sir Ian Kershaw is a British historian, noted for his biographies of Adolf Hitler. Ian Kershaw studied at Liverpool (BA) and Oxford (D. Phil). He was a lecturer first in medieval, then in modern, history at the University of Manchester. In 1983-4 he was Visiting Professor of Modern History at the Ruhr University in Bochum, West Germany. From 1987 to 1989 he was Professor of Modern History at the University of Nottingham, and since 1989 has been Professor of Modern History at Sheffield. He is a fellow of the British Academy, of the Royal Historical Society, of the Wissenschaftskolleg zu Berlin, and of the Alexander von Humboldt-Stiftung in Bonn. He retired from academic life in the autumn semester of 2008.