Who was the greatest athlete to wear the number 23? How about number 7? This book attempts to answer that question for every number, from double zero to 99. For some numbers, the choice is easy; not many people can challenge Michael Jordan. It's much tougher for other numbers. How do you compare players like Mickey Mantle and John Elway, who played different sports in different decades? More than just a list, for each number the book details all the contenders and explains why the winner was selected. You'll also learn why some players chose their number and other interesting trivia. Like any sports debate, you're sure to agree with some picks and disagree with others, and it's sure to spark some conversation among you and your friends. You might even learn about some lesser known athletes; would you have guessed the best at 61 was Curley Culp?