The Intelligent Way is the foundation of the Intelligent or Smart City and is usually formed of four layers (physical infrastructure, sensors, nets and services), improving traditional life (originating in the Roman road or way), which serves only as a passing place and does not exhibit any type of 'intelligence'. The Intelligent Way allows us to create interactive spaces that take computing into the physical world, providing support for a collection of interconnected people who, along with their mobile phones, computers and other devices, buy, sell and exchange information and services. This book offers a panoramic view of the prescription, use and evoluton of Intelligent Ways, which we belive constitute the technological answer that will enable cities to confront the challenges of the future with a better guarantee of success.