Control theory is an interdisciplinary branch of engineering and mathematics that deals with the behavior of dynamical systems with inputs, and how their behavior is modified by feedback. The usual objective of control theory is to control a system, often called the plant, so its output follows a desired control signal, called the reference, which may be a fixed or changing value.

## Principles and Practice of Automatic Process Control – Carlos A. Smith, Armando B. Corripio – 2nd Edition

The book presents all the necessary theory for the successful practice of automatic process control. The significance of the theory…