The book "Mobile Service Innovation and Business Models" offers a comprehensive analysis of the role of innovations in the service sector, particularly in the context of digitalization and information processing. It discusses how modern economies rely on innovative services to ensure future growth. The authors emphasize the complexity of designing new services, which often requires close collaboration between various companies and organizations. A central theme of the book is the connection between service innovation and viable business models, which are crucial for long-term success. The book introduces the STOF model, which provides a holistic view of business models by integrating four interconnected perspectives – Service, Technology, Organization, and Finance. These perspectives help identify critical design questions that influence the viability of business models.