Muhammad Ali's unmatched talent and charisma has fueled nearly a half-century of fan obsession. A vast number of books have been printed related to the boxing legend. Here are three, two actually signed by "The Greatest". Includes: Muhammad Ali His Life and Times, by Thomas Hauser signed by Ali; 25 The First Twenty-Five Years ABC Sports inscribed " Muhammad Ali AKA Cassius Clay 9-7-99"; Neil Leifer: Portraits a limited edition (9/100) boxed set that includes an 8x10" photo of Ali hand numbered and signed by Leifer and the book, also numbered and signed by Leifer.