If God appeared and said I could have only one box set, or even one collection of music on cd, this is the one I would choose. This set is the only way someone, who did not actually live during the 1950's and through the initial Elvis mania, could even come close to understanding what it was like and do grasp his impact on music and culture. The great thing about this set is that it covers, even though all in the late '50's, different aspects of Elvis' carrer. It contains the Sun Sessions, the birth of Rock and Roll, the recordings of, probably, his four best movies and movie soundtracks, His most successful and best Christmas music, great early gospel performances, alternate and rare studio and live recordings and of course, all the other secular recordings of the decade. This box set argues not that he was and still is the King of Rock and Roll alone, but the King of Popular Music.