Scott Aikin is Associate Professor of Philosophy at Vanderbilt University, Nashville, TN. He specializes in epistemology, argumentation theory, and ancient philosophy. He is the author of Epistemology and the Regress Problem (2011) and Straw Man Arguments, with John Casey (2022). John Casey is Professor of Philosophy at Northeastern Illinois University in Chicago, IL. He specializes in the history of medieval philosophy and argumentation theory. He is the author of Straw Man Arguments (in 2022 with Scott Aikin), among other articles on argumentative adversariality, autonomy, informal fallacies, and meta-argument. Katharina Stevens is Associate Professor of Philosophy and an Argumentation Theorist working at the University of Lethbridge in Alberta, Canada. She is a co-editor of the journal Informal Logic and a co-director of the University of Lethbridge's Critical Thinking and Citizen Engagement Lab. She publishes on Argumentation Theory, especially the Ethics of Argumentation and Precedent. She is also the author of The Ethics of Argumentation (2026).
“Leading scholars present the key approaches and debates shaping argumentation theory today. By examining the current state of research and offering their own reasoned perspectives, they show how the field thrives at the intersection of philosophy, communication, and rhetoric. This handbook serves as a guide for newcomers and marks an important advance in the discipline.” -- Jan Albert van Laar, Professor of Philosophy at University of Groningen, Netherlands. “The Routledge Handbook of Argumentation Theory is an indispensable guide to the interdisciplinary study of argumentation. It features a representative selection of senior scholars and emerging voices, who are mapping current debates while also charting new directions. The Handbook highlights the theoretical, empirical, and ethical stakes of argument in our time, addressing tensions between logic and rhetoric, cooperation and conflict, normative standards and practice. Rich in insight and range, it offers students, educators, and researchers a clear entry point into ongoing debates as well as a compelling invitation to further extend and refine the study of argumentation.” -- Jean Wagemans, Professor of Cognition, Communication, and Argumentation, University of Amsterdam, Netherlands.