Déborah Cohen is Senior Lecturer of Early-Modern French History at Rouen University (France). She is a specialist in the popular history of France, covering the modern period and the Revolution. She works on the forms of political participation by the dominated classes and has just completed a project on civic denunciation during the French Revolution, as a form of surveillance of possible abuses and excesses by governments.Federico Tarragoni is Professor of Political Sociology at Caen University (France) and Honorary Fellow at Institut Universitaire de France. He is a leading specialist in populism, on which he has introduced an innovative socio-historical approach, developed in L'esprit démocratique du populisme (La Découverte). He founded the Center for Interdisciplinary Research on Politics (CRIPOLIS) at Paris-Cité University, and won the Schneider Aguirre Basualdo Prize in Social Sciences from the Chancellerie des Universités de Paris.