This is one of the first book that gives an overview of trust management for open service oriented environment. Environmental Service-Oriented Trust Management focuses on computing peer-to-peer (P2P) reputation techniques to build trust. The book also includes a thorough analysis of trust management issues in an open service-oriented environment, the trust model of ad-hoc composition of services and evaluation of reputation-based trust model for service-oriented environment. ? Excerpts from Prof. Elisa Bertino s preface: "This book is the first comprehensive coverage of the principles, methods and systems for trust management and evaluation in service-oriented environment? The middle of the book is devoted to a reputation for trust-based approach.