This book constitutes the proceedings of the 8th International Conference on Exploring Services Science, IESS 2017, held in Rome, Italy, in May 2017. The 33 papers presented in this volume were carefully reviewed and selected from 48 submissions. IESS 2017 covered major research and development areas related to Service Science foundations, service engineering and management, service innovation, service orientation of processes, applications in service sectors and ICT support for services. The presented papers were organized in topical sections named: theoretical contributions: literature analysis and conceptual models; service systems analysis and design; service organizations case studies and practices; and sustainability: service ecosystems, environment control and transportation.