Since an earlier volume in Time-Life's mail-order series The Elvis Presley Collection is subtitled Rock n roll , it's worth asking what distinguishes it from this one, subtitled The Rocker . The answer, in general, is that Rock n roll contains recordings that were written for Presley and that he made into hits, songs like "Heartbreak Hotel" and "Jailhouse Rock," while The Rocker consists of covers of other people's rock & roll hits, such as his versions of LittleRichards s "Long Tall Sally" and "Tutti Frutti," recordings that were used to fill out his LP releases but not issued as singles. "The ways in which he paid tribute to his rocking mentors are celebrated in this collection," is the way annotator Charles Wolfe puts it.