Prof. Enric Plaza holds a Ph.D. in Computer Science by the Technical University of Catalonia (UPC) and is Research Professor of the Spanish Council for Scientific Research (CSIC). His research takes place at the Barcelona Artificial Intelligence Research Institute (IIIA) since 1988, where he is currently head of the Learning Systems Department. He has worked on knowledge acquisition, case-based reasoning, and machine learning in a dozen of European and Spanish projects. He has chaired three international conferences on A.I. fields and has authored over 120 scientific papers, among them one that is the most cited paper in the field of case-based reasoning. His research is now focused on new techniques for case-based reasoning, learning in the framework of multiagent systems and on the use of ontologies in that framework. Currently, he is working on learning from communication using computational argumentation. He is member of a dozen program committees annually for international conferences, plus other conferences and workshops. He is ECCAI fellow and has served as Chairman of the Board of Trustees of the ACIA (Catalan Association for Artificial Intelligence) during four years and frequently publishes articles for AI popularization..