This biography will have your readers on the edge of their seats. Muhammad Ali was a triple threat: heavyweight boxing champion, civil rights activist, and international sports icon. One of the most influential figures of the twentieth century, Ali dominated professional boxing for more than a decade in the 1960s and 1970s. Brash and outspoken, he proclaimed I am the greatest. He backed it up. A true rebel, he refused to serve in the U.S. Army during...