The book PID Control Fundamentals provides detailed insight into important topics related to PID control. The tools presented enable the reader to design closed feedback loops with the desired control performance.The book begins by introducing the one-degree-of-freedom and the two-degrees-of-freedom control structures. Then, types of PID controllers are discussed, and the advantages, as well as the disadvantages, of each type are explained. Suggestions for the application of I, PI, PD, or PID control are given.Methods for designing the controller transfer function are emphasized, the problem of closed-loop stability is discussed, and, finally, robustness measures are presented. Throughout the entire book, detailed examples are used for illustration, and Matlab code is given to facilitate the reproduction of the examples presented.