Introduction; H. Rott, M.-A. Williams. Invited Papers. Inductive Expansion and Nonmonotonic Reasoning; I. Levi. The Basic Dynamic Doxastic Logic of AGM; K. Segerberg. Shielded Contraction; E. Ferme, S.O. Hansson. A Computational Model for Belief and Change and Fusing Ordered Belief Bases; S. Benferhat, et al. Contributed Papers. Minimal Change. An Operational Measure of Similarity Based on Change; M.-A. Williams. Toward a Formalization of Elaboration Tolerance: Adding and Deleting Axioms; E. Amir. Assessing the Minimality of Change in Belief Revision: Capacities; A. Sims, B. Sims. A Minimal Modelling for Successful Knowledge Base Revision; J. Delgrande. Theory: Generalizations and Iterations. Contraction of Epistemic States: A General Theory; A. Bochman. Two Notions of Epistemic Entrenchment; J. Cantwell. Five Faces of Recovery; E. Ferme. Iterable AGM Functions; C. Areces, V. Becher. Iterated Revision Operations Stemming from the History of an Agent's Observations; O. Papini. Structures for Implementations: Layers, Compartments, Inheritance Networks. On a Full Meet Base Revision that Satisfies the Categorial Matching Principle; M. Freund. Revision and Update Based on Stratified Forward Chaining; E.H. Bezzazi. Defeasible Inheritance and Reference Classes; L. Audibert, K. Schlechta. On Structured Belief Bases; R. Wassermann. Iterated Syntax-based Belief Revision in a Nonmonotonic Setting; B. Bessant, et al. Iterated Syntax-based Belief Revision in a Nonmonotonic Setting; B. Bessant, et al. Probability and Multiplicity. Revising and Updating Probabilistic Beliefs; G. Kern-Isberner. BayesianCognitive Diagnosis in Believable Multiagent Systems; F. de Rosis, et al. Revising Beliefs Received from Multiple Sources; A.F. Dragoni, P. Giorgini. Index.