Logic has found application in virtually all aspects of Information Technology from software engineering and hardware to programming and artificial intelligence. Indeed logic artificial intelligence and theoretical computing are influencing each other to the extent that a new interdisciplinary area of Logic and Computation is emerging. The Journal of Logic and Computation aims to promote the growth of logic and computing including among others the following areas of interest: Logical Systems such as classical and non-classical logic constructive logic categorical logic modal logic type theory feasible maths.... Logical issues in logic programming knowledge based systems and automated reasoning; logical issues in knowledge representation such as nonmonotonic reasoning and systems of knowledge knowledge and belief; logics and semantics of programming; specification and verification of programs and systems; applications of logic in hardware and VLSI natural language cincurrent computation planning and databases. The bulk of the content is technical scientific papers althougth letters reviews and discussions as well as relevant conference reviews are included.