 Informal logic and argumentation theory have been highlighted at numerous international conferences hosted by organizations committed to the study of argument. Key conferences include nine Amsterdam conferences (and a tenth conference in Zhenjiang) hosted by the International Society for the Study of Argumentation (ISSA); twelve Windsor conferences hosted by the Ontario Society for the Study of Argumentation (OSSA); six Tokyo Conferences on Argumentation hosted by the Japanese Debate Association; three meetings of the European Conference on Argumentation (ECA); eight meetings of the International Conference on Computational Models of Argument (hosted by COMMA), and many workshops on issues of argumentation, dialogue, and persuasion organized by the Polish group ArgDiaP. 