The digital transformation in society has already significantly impacted many industries. This change is also occurring in the book market. Only those companies that embrace this transformation and adapt their business models accordingly can maintain their revenues. This book provides a brief explanation of transformations in general and the tools of change management that are essential for addressing changes. Following an overview of the German book market with all its participants and an explanation of how it functions, there is a specific focus on the brick-and-mortar book retail sector. In this context, the changing purchasing behavior of consumers is discussed, including aspects such as shopping times, distribution channels, and shopping locations, as well as concentration and cooperation in book retail. Additionally, the book examines how digital innovations are influencing the future of the book market.