This document provides an overview of the Internet of Things (IoT). It begins with defining IoT as the network of physical objects embedded with sensors that can collect and exchange data. It then outlines how IoT works through technologies like communication, identification, sensing and embedded processing. The document discusses the current status and future prospects of IoT, as well as examples of applications in various industries. It also covers challenges of IoT related to issues like scalability, standardization and data volumes. In conclusion, the document notes criticisms around privacy, security and how IoT may influence human decision making.