In 1882, George Bernard Shaw published a novel entitled 'Cashel Byron's Profession.' It is the story of a fictional Irish boxer, a school drop-out, of humble origins, who becomes a world famous prizefighter. Two years into his illustrious boxing career, he abandons his profession to marry a wealthy aristocratic women with whom he has four children. Forty years later, the career of Gene Tunney, heavyweight boxing champion of the world, appeared to be the carbon copy of Shaw's novel. Tunney was of Irish origins, a school drop out at the age of 15, became the most celebrated scientific heavyweight champion, abandoned his career at its apogee to marry a Carnegie, Mary 'Polly' Lauder, and had four children. Tunney was also a self-educated renaissance man, who read widely, an admirer of Shaw and, clearly adored Shaw's novel. Finally, Jay Tunney has given us a book that explores and documents this unique friendship.