the general innovation theory and the other based on the service marketing theory. Service innovation is considered from the points of view of drivers, processes, practices, and outcomes. The interrelations between actors and systems are analyzed, and the nature of innovation as a new way to co-create value is highlighted. The book promotes the view that users are an important source of innovative ideas and that openness is an important success factor in innovation processes. In addition to the general nature and management of service innovation, some specific topics are included, exemplified by innovations in public services and in knowledge-intensive business services. This volume is highly recommended to readers who seek a state-of-the-art overview of the area of service innovation and its linkages to systems research.