Based on two international workshops on trust in agent societies, held at AAMAS 2003 and AAMAS 2004, this book draws together carefully revised papers on trust, reputation, and security in agent society.

Normative Multiagent Systems and Trust Dynamics.- Toward Trustworthy Adjustable Autonomy in KAoS.- Contract Nets for Evaluating Agent Trustworthiness.- The EigenRumor Algorithm for Calculating Contributions in Cyberspace Communities.- A Temporal Policy for Trusting Information.- A Design Foundation for a Trust-Modeling Experimental Testbed.- Decentralized Reputation-Based Trust for Assessing Agent Reliability Under Aggregate Feedback.- A Trust Analysis Methodology for Pervasive Computing Systems.- Decentralized Monitoring of Agent Communications with a Reputation Model.- A Security Infrastructure for Trust Management in Multi-agent Systems.- Why Trust Is Hard – Challenges in e-Mediated Services.- A Protocol for a Distributed Recommender System.- Temptation and Contribution in C2C Transactions: Implications for Designing Reputation Management Systems.