Comprehensive and authoritative resource paving the way for the integration of machine-type communications (MTC) and satellite connectivity toward 6G era This book focuses on the integration of machine-type communications (MTC) and satellite connectivity toward the 6th generation of mobile systems (i.e., the "6G"). Integrating these two technologies, especially within the emerging direct-to-satellite (DtS) concept employing direct connectivity between an MTC terminal and a satellite-based gateway, will be critical in enabling the future Internet of Things (IoT) applications in remote areas with limited connectivity infrastructure available. To this end, the book delivers an in-depth analysis of the drivers, use cases, scenarios, technical aspects, cybersecurity, and mechanisms spanning from the physical layer (PHY) to the application layer, regulation, standardization, and potential business models. In addition, many examples, illustrative figures, and tables support the text. With each chapter written by renowned experts in the field, Integration of MTC and Satellites for IoT toward 6G era contains information on: How to enable wireless connectivity for MTC/IoT devices in remote areas, which hardware and network architectures can be employed, and their pros and cons Fundamental and practical challenges, design dimensions, and perspective technologies for integrated MTC and satellite systems Applications and business areas that would be the first ones to employ DtS and status of standardization and regulation activities in the field The strong tutorial element makes the Integration of MTC and Satellites for IoT toward 6G era a convenient learning resource for students and educators in higher education institutions. Moreover, it is ideal for students obtaining their first professional degree and experts who operate in this or adjacent fields and want to revise and update their knowledge.