The Internet-of-Things (IoT) is gradually being established as the new computing paradigm, which is bound to change the ways of our everyday working and living. IoT emphasizes the interconnection of virtually all types of physical objects (e.g., cell phones, wearables, smart meters, sensors, coffee machines and more) towards enabling them to exchange data and services among themselves, while also interacting with humans as well. Few years following the introduction of the IoT concept, significant hype was generated as a result of the proliferating number of IoT-enabled devices, which (according to many projections) are expected to amount to several billions in the next years. During recent years, this hype has been turning to reality, as a wave of IoT applications with significant social and economic has been emerging. Even in cases of IoT applications that deal with actuation and control (e.g., manufacturing robots), IoT data analysis plays a major role, as the foundation for driving the control process. Overall this is one of the first and few books to discuss advanced IoT analytics topics, including relevant technologies and case studies. I therefore believe it could provide insights on IoT analytics to interested parties for the coming years, while I also expect that additional books on IoT analytics will also emerge. I sincerely hope that readers will find the book interesting and worth reading.