This book constitutes the refereed proceedings of the Second International Workshop on Technologies for E-Services, TES 2001, held in Rome, Italy, in September 2001.The 15 revised full papers presented were carefully reviewed and selected for inclusion in the book. Among the topics addressed are b2b protocols, inter-enterprise process execution, business logic, cooperative multiplatform environments, session-oriented telecommunication services, cross-organizational workflow environments, Internet-based workflow, composite e-services, transactional business processes, e-service security, distributed e-services, mobile commerce, e-commerce, pervasive services infrastructure, and mobile Internet agents.