This Book contains thirteen chapters explain the control theory with examples and above one hundred solved problems about design and analysis of control system. It originates from my editing of lecture notes that were used as teaching material for the course "Control Theory , given within the under graduate of electrical engineering department, engineering college, university of Anbar, in the period from 2007 2014. The aim of this course is to provide an extensive treatment of the theory of classical control design for linear, finite-dimensional, time-invariant state space systems with inputs and outputs. I would appreciate being informed of errors, or receiving other comments about this book.