This textbook starts with consensus and synchronisation as the classical problems of the field and continues with the communication structure design of networked controllers, self-organised and event-triggered control, which are novel problems for which solutions have been elaborated recently. One of the main methodological problems concern the step from the local, microscopic properties of the single agents with their local controllers to the global, macroscopic phenomena that appear in the networked system. The book introduces network thinking as a guiding principle to deal with the overall system as an interconnection of controlled agents and to answer the question why certain information structures are more favourable than others. Many figures illustrate the new dynamical phenomena encountered in networked systems. The book * demonstrates networked control by 75 numerical examples and application studies, * includes 112 exercises, most of them with solutions, * provides supplementary material on matrix algebra, probability theory and the analysis of graphs with MATLAB.