This is the authorized biography of Jimmy Hoffa, whose disappearance in 1975 is one of our country's most famous unsolved mysteries. From humble beginnings in Indiana, James R. Hoffa rose up the ranks and eventually became the leader of the world's most powerful labor union. There were those that wanted to bring him down, perhaps none more interested than Robert F. Kennedy. Adored by millions, feared by some, and despised by others, Jimmy Hoffa had an incredible journey and author Jim Clay was there with Hoffa to tell his story, in Hoffa's own words.