Christopher W. Tindale is Professor of Philosophy and Director of the Centre for Research in Reasoning, Argument and Rhetoric at the University of Windsor, Ontario. His key publications include: Acts of Arguing (1999), Rhetorical Argumentation (2004), Fallacies and Argument Appraisal (2007) and Reason's Dark Champions (2010). He is also the co-author, with Leo Groarke, of Good Reasoning Matters, now in its 5th edition (2012).