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José Alhambra
José Alhambra is a research fellow at Autonomous University of Madrid (Spain). He has developed his work in the field of argumentation studies and informal logic. His doctoral dissertation, entitled “The Place of Analogy in Argumentation Theory,” focuses on the justificatory use of analogies and their role in argument evaluation. He is currently preparing a postdoctoral research project on argumentative particularism,
the claim that the logical evaluation of arguments is a context-dependent endeavour that cannot be based solely on general rules. Some of his work can be found here.
Michael Baumtrog
Michael Baumtrog is a philosopher working in the Ted Rogers School of Management at Toronto Metropolitan University. He is the chair of the Argumentation Network of the Americas (ANA) and the leading organizer of the ANA conference. He completed his PhD at NOVA University in Lisbon, Portugal and his Bachelors and Masters degrees at the University of Windsor. His current research focuses are on the concept and manifestation of agreement, and the moral and epistemological status of children. Learn more about him here.
Jason Hannan
Jason Hannan is Professor in the Department of Rhetoric, Writing, and Communications at the University of Winnipeg. His work focuses on the politics of truth in the public sphere. He is the author of Trolling Ourselves to Death: Democracy in the Age of Social Media (2023) and Ethics Under Capital: MacIntyre, Communication, and the Culture Wars (2020). His edited volumes include Meatsplaining: The Animal Agriculture Industry and the Rhetoric of Denial (2020), Truth in the Public Sphere (2016), andPhilosophical Profiles in the Theory of Communication (2012). His current book project (with Matt McManus) is Reactionary Speech: Denialism and Mythmaking in the Service of Power, a theory of conservative rhetoric for the digital age.
Randy Allen Harris
Randy Allen Harris is Professor of English Language and Literature at the University of Waterloo, with a cross-appointment to the David Cheriton School of Computer Science. He works at the intersection of linguistics, rhetoric, cognitive neuroscience, and artificial intelligence, with side interests in deliberative democracy, propaganda, bullshit, and the rhetoric of science. His books include The Linguistics Wars, Rhetoric and Incommensurability, and (with Jeanne Fahnestock) the Routledge Handbook of Language and Persuasion. Some of his work can be found here.
Christopher Tindale
Christopher Tindale is a Distinguished University Professor of Philosophy at the University of Windsor, where he leads the Center for Research on Reasoning, Argumentation and Rhetoric (CRRAR). He is the co-editor of the journal Informal Logic. His research interests are argumentation theory, rhetoric and ancient philosophy. He has published extensively in all three areas and is a main proponent of the Rhetorical Theory of Argumentation. More can be found out here.
Tracy Bowell
Tracy Bowell works in the Philosophy Programme at the University of Waikato, Hamilton, Aotearoa – New Zealand. Her areas of research interest include argumentation theory and critical thinking, feminist philosophies, philosophy of education and Wittgenstein’s philosophy. Her current projects encompass work on social justice and argument, protest, activism and argument, and charity in argument. Along with Robert Cowan (Glasgow) and Gary Kemp (Glasgow), she is the author of Critical Thinking: A Concise Guide (6th ed. forthcoming 2026) Tracy is currently the CEO of the Australasian Association of Philosophy.