The context of mediation immediately highlights the importance of argumentation as a means to reasonably handle conflict. <i>Argumentation in dispute mediation</i> tackles this topic providing both theoretical insights and detailed empirical argumentative analysis. Its goal is twofold: to explore mediation as a real-life context of argumentation and to show how an increased argumentative awareness could improve conflict resolution.<br />Particular emphasis is accorded to mapping mediation through an interdisciplinary reasoned review of existing accounts. The outline of a conceptual framework of mediation constitutes a solid basis for the study of argumentation in mediation. The argumentative analysis of a corpus of mediation cases, based on the pragma-dialectical account and the Argumentum Model of Topics, shows the mediator’s moves which actually help conflicting parties discuss reasonably. The mediator’s topical potential plays a crucial role in this relation at the levels of issue selection, evoking of cultural-contextual premises and choice of argument schemes.