Frans H. van Eemeren is President of the International Society for the Study of Argumentation (ISSA) and the International Learned Institute of  Argumentation Studies (ILIAS), Emeritus Professor of Speech Communication, Argumentation Theory and Rhetoric at the University of Amsterdam, Distinguished Scholar of the National Communication Association (U.S.) and Doctor Honoris Causa of the University of Lugano (Switzerland). He is a former Dean of the Faculty of Arts and the Faculty of Humanities of the University of Amsterdam and Guest Professor at Leiden University, Jiangsu University, Sun-yat Sen University and Zhejiang University. Van Eemeren is a Knight in the Order of the Dutch Lion. He is founder of the Pragma-Dialectical theory of argumentation and Editor-in-Chief of the journal Argumentation, the Journal of Argumentation in Context and the accompanying book series Library of Argumentation and Argumentation in Context. The monographs he (co)authored include Speech Acts in Argumentative Discussions (1984), Argumentation, Communication, and Fallacies (1992), Reconstructing Argumentative Discourse (1993), A Systematic Theory of Argumentation (2004), Argumentative Indicators in Discourse (2007), Fallacies and Judgments of Reasonableness (2009), Strategic Maneuvering in Argumentative Discourse (2010), Handbook of Argumentation Theory (2014), Reasonableness and Effectiveness in Argumentative Discourse (2015), Prototypical Argumentative Patterns in Discourse (2017) and Argumentation Theory: A Pragma-Dialectical Perspective (2018). Bart Garssen is lecturer in the Department of Speech Communication, Argumentation Theory and Rhetoric in the University of Amsterdam. His research interests include argument schemes, fallacies and political argumentation. Next to his dissertation in Dutch about argument schemes in a pragma-dialectical perspective, he published book chapters and articles about theoretical problems relating to the use of argument schemes, strategic manoeuvring in plenary debates in the European Parliament and argumentative patterns in political argumentative discourse. He is editor of the journal Argumentation and the Journal of Argumentation in Context (Benjamins) and the  accompanying book series Argumentation Library and Argumentation in Context.