The Blind Side - Evolution of a Game by Michael Lewis Norton, HK$133 Michael Jerome Oher, 21, stands 1.98 metres, weighs 146.1kg and plays basketball for fun. Mostly, he's an offensive lineman in the University of Mississippi football team, playing left tackle. For the uninitiated, he's the player who protects the quarterback from being crushed from his blind side before he can throw the ball. Left tackle is a new kind of athlete in huge demand in American football and Oher is what is known in market terms as 'a valuable commodity'. Michael Lewis, whose journalism explores the way market forces and economic rationale are shaping the evolution of sport (his last book, Moneyball, was about baseball), tells Oher's story in The Blind Side. How a functionally illiterate and barely verbal Memphis black teenager, one of 13 children born to a crack-addicted single mother, was rescued by a white Republican born-again Christian family that believed Oher might have a chance at a life that didn't end with him dead or in prison, makes diverting human-interest reading. Lewis likes unlikely heroes (bond traders in Liar's Poker, an internet entrepreneur in The New New Thing) and Oher is as unlikely as they come.