This book addresses four key aspects of The Internet of Things (IoT) using a holistic approach. The first section covers the historical foundation that delves into ideas, experiments, advances, and past investments that make IoT possible. This section also explores the influences that previous technology changes have had in the large and examines where and how IoT may have comparable or greater impacts. The second section is focused on the basic ingredients for IoT which includes physical, software, and infrastructure components. It analyzes these components' desired set of functions, common services, expected performance characteristics, and solutions. The third section is devoted to tools, processes, and important organizational aspects of IoT. It also summarizes and describes the efforts to create middleware and platforms that are important for IoT, standards activities, and many significant products and services. The concluding section covers case studies current deployments, planned activities, and future possibilities in major sectors of the economy. It also touches upon social, legal, policy, and economical issues that IoT may face in the near and distant future.