Edited in collaboration with FoLLI the Association of Logic Language and Information this
book constitutes the refereed proceedings of the Second International Workshop on Logic
Rationality and Interaction LORI 2009 held in Chongqing China in October 2009. The 24
revised full papers presented together with 8 posters were carefully reviewed and selected from
a flood of submissions. The workshops topics include but are not limited to semantic models for
knowledge for belief and for uncertainty dynamic logics of knowledge information flow and
action logical analysis of the structure of games belief revision belief merging logics for
preferences and utilities logics of intentions plans and goals logics of probability and
uncertainty argument systems and their role in interaction as well as norms normative
interaction and normative multiagent systems.
