The introductory course in Control System Analysis is covered in the Final/prefinal year engineering classes. As per the development in the field of control systems this subject is shifted to lower semester classes. Additional concepts have been introduced for higher semester classes. The purpose of this book is to present these concepts in a simple and concise manner. The matter presented in this book is in addition to the course contents of the subjects basic control systems and therefore this book serves as a companion book. It is presumed that the reader is well versed with the knowledge of basic control systems. The contents of this book are suitably framed to meet requirements at a slightly higher level than that of introductory course on Control System Analysis. The material contained in this book covers the course contents of the syllabus for the subject Control System II prescribed by Indian Universities. Theory is well supported by suitable numerical examples.