Smart Cities are being discussed all around the world. Information and communication technology is being implemented to contribute to solving current and future social challenges within cities. This book shows how a Smart City was actually developed over five years, as a Public-Private Partnership between Deutsche Telekom and the city of Friedrichshafen. The aim of the project was to enhance the quality of life of the citizens, to increase the locational advantages for businesses and to raise the level of interconnection in the urban society. The idea was put into practice over a five-year period and was accompanied by social-scientific research. The authors reveal the impact and purpose of the project, which provides a concrete contribution to the worldwide debate about Smart Cities.