Most people have heard about black holes but most people do not who Roy Kerr is and how his work has revolutionized the study of black holes. This little book is a welcome introduction to this little known, private genius! Part scientific biography and part introduction to black holes and the state of the current knowledge about them. It has some rare and interesting photographs of the 1962 relativity conference in Warsaw. We need a full length biography of the man dubbed by the NZ press as the "Man of Mystery", but till that time, thanks to Fulvio Melia for writing this small book. Highly Recommended!