This volume contains the papers presented at the Second Irish Conference and Workshop on Artificial Intelligence and Cognitive Science, held at Dublin City University in September 1989. This conference has become the major annual forum in Ireland for the presentation and discussion of current research work in the multidisciplinary area of artificial intelligence. The aim of the AICS '89 conference was to provide a forum for industry and academic research to discuss AI and AI-related topics. Each paper presents new research results within its own specific area.