Researchers in all disciplines are becoming increasingly aware of the importance of experimental designs and statistical methods in their investigations. Use of a sound experimental design is crucial to ensure reliability of data and subsequent findings from a study. That is why a design for collecting date is at the core of Statistics. Professor Damaraju Raghavarao has made fundamental contributions to both the theory and application of the Design of Experiments. This book is dedicated to him, and consists of twelve papers on recent developments on different topics in the area of Design of Experiments by distinguished researchers.