This book presents the most important methods used for the design of digital controls implemented in industrial applications. It covers essential modeling and identification techniques for dynamical systems, along with algorithms for implementing modern solutions in process control. The proposed methods are illustrated through various case studies across main industrial sectors, providing a comprehensive approach to solving all problems related to process control design. Unlike other books that focus on single types of control or specific sectors without comparisons, this publication offers a cohesive guide to address the diverse challenges in industrial applications.