As a retired professor of psychology from a reputed Indian University, now I am interested in understanding the nuances of single case designs for educational research. Though I am officially retired now, academically I wish to learn more and more so that I can serve academic community without any administrative hassles. As I am yet to see the contents of the whole book, I would like to know whether I can read this book on line. From Wikipedia, I got this reference. I am sure that contents of this book will enrich my basic knowledge in research methodology as applied to social sciences especially my parent domain, PSYCHOLOGY. I will be grateful if free on line edition is available. I seek this favor only for further self enlightenment which in turn will be of help and use for those who are interested in pursuing their knowledge in single case study design. I assure you that I will not use my knowledge for any commercial purpose.