The world comprises many systems, viz., geographical system, business system, political system, educational system, public system, and social system. Each of these systems has certain objectives in terms of their measures of performance. It is mandatory to analyze and design the parameters of the systems such that the measure of performances, either individually or collectively are optimized. This text on Design and Analysis of Experiments is aimed to achieve the above goals. The book is written in an easy-to-read style. At the end of each chapter, a set of exercise questions is given to test the understanding of the concepts and techniques. Designed primarily as a text for the undergraduate and postgraduate students of industrial engineering, chemical engineering, production engineering, mechanical engineering, and quality engineering and management, it covers fundamentals as well as advanced concepts of Design of Experiments.