If the turn of the twenty-first century was characterised by the 'history wars' in which bitter internecine battles raged between different historical schools, Jonathan Steinberg was noteworthy for his methodological pluralism. His own historical worked spanned diplomatic history, military history, the social history of war, biography, social history, banking history, political culture and genocide studies. He often employed a comparative historical approach, which teased out deep historical explanations by examining personalities, nations and traditions simultaneously. This book offers a critical appreciation of his contribution to modern historical practice with contributions by former students and colleagues, whose own interests are as diverse as those of Steinberg himself.