Kevin Mitchell 
How to Think Like Muhammad Ali [EPUB ebook] 
The Paradox of Greatness and the Power of Mental Toughness

Consider the question — why does anyone buy sports books, or books about or by sports stars? For sure there is a souvenir and nostalgia element. But people also buy sports books to see if our heroes give any clues to the magic ingredient that has made them so successful. We read them to see what we can learn about their lives, particularly in the hard times, and how they triumphed over adversity.