Wireless Connectivity: An Intuitive and Fundamental GuideWireless connectivity has become an indispensable part, a commodity associated with the way we work and play. The latest developments, the 5G, next-generation Wi-Fi and Internet of Things connectivity, are the key enablers for widespread digitalization of practically all industries and public sector segments. This immense development within the last three decades have been accompanied by a large number of ideas, articles, patents, and even myths. This book introduces the most important ideas and concepts in wireless connectivity and discusses how these are interconnected, whilst the mathematical content is kept minimal. The book does not follow the established, linear structure in which one starts from the propagation and channels and then climbs up the protocol layers. The structure is, rather, nonlinear, in an attempt to follow the intuition used when one creates a new technology to solve a certain problem. The target audience is: Students in electronics, communication, and networkingWireless engineers that are specialized in one area, but want to know how the whole system works, without going through all the details and mathComputer scientists that want to understand the fundamentals of wireless connectivity, the requirements and, most importantly, the limitationsEngineers in energy systems, logistics, transport and other vertical sectors that are increasingly reliant on wireless technology