Long praised for its clear, stylish presentation of the basic principles of process automation, the third edition of Dr. Paul Murrill's classic textbook is now revised and updated for the digital age. Step by step, with 16 carefully designed self-study units, Murrill walks you through process control theory from basic concepts to advanced control techniques. Now, not only does it reflect the most recent changes in technology, but it also incorporates material from Application Concepts of Process Control, Murrill's much-praised book on putting theory into practice. Here are classic principles that govern process control, particularly feedback control, as well as recent technologies such as statistical process control and expert systems. New chapters focus on the conceptual framework for an application, offering a practical understanding of the theory, along with specific illustrations on how concepts are implemented.