The networking of devices, machines and systems plays a key role in Industry 4.0. This textbook conveys the basic knowledge required for the successful use of intelligent networked production systems. It is aimed at students from the fields of mechanical engineering, electrical engineering as well as process and environmental engineering, and is also suitable for practitioners who are involved in the automation of production.The book is divided into three parts. Part I is dedicated to the basics of networking and bus systems, including their procedures, methods and structures of local networks; hardware and software components of embedded systems; the properties of selected fieldbus systems; and open communication between networked systems based on Open Platform Communications. Part II deals with the Industrial Ethernet as well as wireless and mobile communication systems. Part III deals with the networking of cyber-physical systems, which form the basis for Industry 4.0 scenarios. Its coverage includes the architectures and services for Industry 4.0 and Industrial Internet of Things, communication infrastructures and protocols for Industry 4.0 production systems and networking in the digital factory.The basics of networked systems are illustrated using numerous application cases. More than 80 exercises provide the opportunity to test and deepen the knowledge acquired. The solutions to all the exercises, as well as additional supplementary material are also available.