Wolfgang Behringer is Professor of early modern history at the University of the Saarland, Germany. The world’s leading historian of witchcraft beliefs, he has written and edited dozens of books on the subject. Christopher Clark is the twenty-second Regius Professor of History at the University of Cambridge, UK. His works include Iron Kingdom: The Rise and Downfall of Prussia, 1600-1947 (2006; winner of the triennial German Historians’ Prize); Kaiser Wilhelm II (2000); and The Sleepwalkers: How Europe Went to War in 1914 (2012). David Lederer is Senior Lecturer for early modern European history at Maynooth University, Ireland. His publications include Religion, Madness and the State in Early Modern Europe: A Bavarian Beacon (2006) and a co-edited special edition for the Journal of Social History, 'The Politics of Suicide' (2012). Dorothee Wierling is Emeritus Professor at the University of Hamburg, Germany and Deputy Director of the Hamburg Institute for Contemporary Studies. Her publications include Kaffeewelten (2012), and Eine Familie im Krieg: Leben, Sterben und Schreiben 1914-1918 (2013).