This book constitutes the thoroughly refereed post-workshop proceedings of the International
Workshop on Coordination Organization Institutions and Norms in Agent Systems COIN 2008
held as two events at AAMAS 2008 the 7th International Joint Conference on Autonomous Agents
and Multiagent Systems in Estoril Portugal in May 2008 and at AAAI 2008 the 23rd AAAI
Conference on Artificial Intelligence in Chicago IL USA in July 2008. This volume is the 4th
in a series focussing on issues in Coordination Organizations Institutions and Norms (COIN)
in multi-agent systems. The 17 papers contained in this volume are the revised and extended
versions of a selection of papers presented and discussed in these two workshops. The papers
are organized in the following topical sections: from coordination to organization from
organization to coordination formalization of norms and institutions design of norms and
institutions as well as applications.