Abstract
This issue has proceeded from the Fifth International Conference on Thinking, which was held in the Department of Psychology of the University of Leuven, Belgium, July 22-24, 2004. The conference, which was sponsored by the Fund for Scientific Research Flanders and the British Psychological Society (Cognitive Section), intended to bring together researchers working in different domains of the psychology of thinking and reasoning. Five keynote speakers (Ruth Byrne, Vinod Goel, Karl-Christoph Klauer, Paolo Legrenzi, & Douglas Medin) were introducing some of the important topics (the rational imagination, the neuropsychology of reasoning, the Wason selection task, reasoning to consistency, biological thought within and across cultures).