Mark Hewitson is a Professor of German History and Politics, and Director of European Social and Political Studies at University College London. His publications include monographs on National Identity and Political Thought in Germany (2000), Germany and the Causes of the First World War (2004), Nationalism in Germany, 1848-1866 (2010), and History and Causality (2014). He is the co-editor of What is a Nation? Europe, 1789-1914 (2006, with Timothy Baycroft), and of Europe in Crisis: Intellectuals and the European Idea, 1917-1957 (2012, with Matthew D'Auria).