An artist who managed to fully cross over from country star to full-blown legend, there's no overestimating the influence that Johnny ... in Cash's massive catalog? These 20 songs are essential ...

The Untold Stories" and "1968: A Folsom Redemption," explore the art of individuals affected by the prison system.

Johnny Cash fans were treated earlier this year to ... Cash places one title above that returning win and another below it. The Essential is down slightly, falling from No. 6 to No. 8 this week.