Most of the materials including solved and unsolved problems presented in the book have been class-tested in senior undergraduates and first year graduate courses in the field of control systems at the Electronics and Telecommunication Engineering Department, Jadavpur University. MATLAB is the most widely used CAD software package in universities throughout the world. Some representative MATLAB scripts used for solving problems are included at the end of each chapter. The detailed design steps of fuzzy logic based controller using Simulink and MATLAB has been provided in the book to give the student a head start in this emerging discipline. A chapter has been included to deal with nonlinear components and their analysis MATLAB and SIMULINK through user defined s-functions. Finally, a chapter has been included to deal with the implementation of digital controllers on finite bit computer, to bring out the problems associated with digital controllers. In view of extensive use of MATLAB for rapid verification of controller designs, some notes for using MATLAB script M-files and function M-files are included at the end of the book.