This book constitutes the thoroughly reviewed joint post-conference proceedings of two international workshops on Coordination, Organization, Institutions and Norms in Agent Systems, COIN@AAMAS 2011, held in Taipei, Taiwan in May 2011 and COIN@WI-IAT 2011, held in Lyon, France in August 2011.

Agent Coordination.- Multi-agent Coordination through Mutualistic Interactions.- Explanation in Human-Agent Teamwork.- Adaptive Coordination in Distributed and Dynamic Agent Organizations.- Organisations and Institutions.- An Agent-Based Inter-organizational Collaboration Framework: OperA+.- MANET: A Model for First-Class Electronic Institutions.- Norm-Aware Agent Reasoning.- Towards Practical Normative Agents: A Framework and an Implementation for Norm-Aware Planning.- Towards Justifying Norm Compliance.- Normative Run-Time Reasoning for Institutionally-Situated BDI Agents.- Modelling and Monitoring Interdependent Expectations.- Norm Creation and Enforcement Operationalization of the Sanctioning Process in Utilitarian Artificial Societies.- Overcoming Omniscience for Norm Emergence in Axelrod’s Metanorm Model.- Establishing Norms for Network Topologies.

This book constitutes the thoroughly reviewed joint post-conference proceedings of two international workshops on Coordination, Organization, Institutions and Norms in Agent Systems, COIN@AAMAS 2011, held in Taipei, Taiwan in May 2011 and COIN@WI-IAT 2011, held in Lyon, France in August 2011.The 12 revised full papers presented were carefully selected for presentations. The papers are organized in topical sections on agent coordination, norm-aware agent reasoning, as well as norm creation and enforcement.