Of course it's Walter Issacson's book, I blindly say it would be bestseller. Sir Walter Issacson is the best biographer who has written Steve Jobs so beautifully that I read it two times. I really loved how he represented different phases of life. Talking about his new book on Sir Elon Musk, this is also one of the best book he has written. I recommend this book to everyone I meet. It is so empathically presented, that the reader feels the book by reading it. Another great work by Walter Issacson sir.