Knowledge Representation and Reasoning traditionally strong in Europe and remains the largest area of ECAI 2006. One reason the figure for Case-Based Reasoning somewhat low is that many of the high quality work in this area has found its way into applications and thus represent the prestigious under the heading of Pais. IOS Press is an international scientific, technical and medical publisher of high-quality books for academics, scientists, and professionals in all fields. Some areas we publish in: -Biomedicine -Oncology artificial intelligence -Database and information systems engineering-Maritime -Nanotechnology -Geoengineering -All aspects of physics -E-governance -E-commerce -The economics of knowledge -Urban Study -Arms Control -Understand and respond to terrorism -Medical informatics Computer-Science