Pierre Ostiguy is Professor in the Escuela de Administración Pública of the University of Valparaiso, in Chile. He received his PhD in political science at the University of California, Berkeley, and has taught as a regular faculty member in Canada, the United States, Argentina, and Chile. He has been a visiting scholar at the Kellogg Institute (Notre Dame) and the Scuola Normale Superiore in Florence. He worked extensively on Peronism and anti-Peronism in Argentina, before turning to the political and social theory of populism and the comparative global study of populist politics. He is co-editor of The Oxford Handbook of Populism (2017) and one of three contributors to its Concepts section. He has authored numerous articles on populism and on party systems in Spanish, French, and English. Extended interviews with Ostiguy have been featured in Esprit (France), Birikim (Turkey), and, on many occasions, in Argentina.

Francisco Panizza is Professor in the Department of Government at the London School of Economics and Political Science. He has been a visiting professor in universities in Argentina, Brazil, France, Mexico, Spain, Switzerland, and Uruguay. His main research interests are populism, democratic politics, and Latin American politics. He has written extensively on populism and on left-of-center governments in Latin America. He is a Routledge author and editor. Among his main publications are: "Populism and Identity" in The Oxford Handbook of Populism (2017); Conceptualizing Comparative Politics (ed. with Anthony Peter Spanakos) (2016); Moments of Truth: The Politics of Financial Crises in Comparative Perspective (ed. with George Philip) (2014); The Triumph of Politics: The Return of the Left in Venezuela, Bolivia and Ecuador (with George Philip) (2011); Contemporary Latin America: Development and Democracy Beyond the Washington Consensus (2009); and, key for this volume, Populism and the Mirror of Democracy (Verso 2005).

Benjamin Moffitt is Senior Lecturer in Politics and Australian Research Council Discovery Early Career Research Award Fellow at the Australian Catholic University (Melbourne). He received his PhD from the University of Sydney, Australia. His research focuses on contemporary populism across the globe and is located at the intersection of democratic theory, comparative politics, and political communications. He is the author of The Global Rise of Populism: Performance, Political Style, and Representation (Stanford 2016); Populism (Key Concepts in Political Theory) (Polity 2020); and Political Meritocracy and Populism (with Mark Chou and Octavia Bryant; Routledge, 2020). He has also authored articles on populism in journals including Political Studies and Government & Opposition, and chapters in numerous edited collections, including The Oxford Handbook of Populism (2017) and Routledge Handbook of Global Populism (2019). His work has appeared or been cited in media outlets including The Economist, The Washington Post, The Huffington Post, Bloomberg News, BBC News, and The Guardian. In 2018, he was named among the Top 5 Humanities and Social Sciences early career researchers in Australia by the Australian Broadcasting Company.