What if Stephen Hawking was physically challenged; he himself was a challenge to the word Impossible.It was only necessary for him to know that something could be done and he could do it without looking to see how other people did it. He did not have many books and also he did not take notes. Of course, his mind was completely different from his contemporary.Stephen Hawking's energy and capacity for hardwork were daunting and he had a gusto that made students and friends feel more alive. His reputation brought him the post of lecturer in mathematics of Exeter University in 1961 and there he built a wonderful network of students and teachers. He wanted to liberate the typical mathematical psyche, sometimes trapped in narrow by ways.His genius cannot easily be defined in a particular direction since he was related to various subjects having deep interest in different fields. And the compilation of this book is a magnificent effort to present Stephen Hawking in brief, his character, personality, achievement, contribution and so on despite having passed through a pitiable condition due to his physical disability throughout the life.