Agent Communication and Interaction -- Adding New Communication Services to the FIPA Message Transport System -- Analysis of Multi-Agent Interactions with Process Mining Techniques -- Engineering Agent Conversations with the DIALOG Framework -- Agents' Bidding Strategies in a Combinatorial Auction -- Applications and Simulation -- Modeling and Simulation of Tests for Agents -- Agent-Based Simulation Versus Econometrics - from Macro- to Microscopic Approaches in Route Choice Simulation -- Agent Based Simulation Architecture for Evaluating Operational Policies in Transshipping Containers -- Agent Planning -- Diagnosis of Multi-agent Plan Execution -- Framework and Complexity Results for Coordinating Non-cooperative Planning Agents -- Agent-Oriented Software Engineering -- A Model Driven Approach to Agent-Based Service-Oriented Architectures -- Meta-models, Models, and Model Transformations: Towards Interoperable Agents -- Formation of Virtual Organizations Through Negotiation -- Continuations and Behavior Components Engineering in Multi-Agent Systems -- Trust and Security -- Evaluating Mobile Agent Platform Security -- A New Model for Trust and Reputation Management with an Ontology Based Approach for Similarity Between Tasks.