Johnny Cash with His Hot and Blue Guitar! begins with the visual language of a 1950s label debut: a light-blue field, oversized lettering and a guitar split between hot orange and blue. Sun Records identifies the album as Cash's debut and the first LP Sam Phillips issued on the label, so the sleeve belongs to the moment when Cash was still being introduced as a new recording artist.
By At Folsom Prison, the graphics give way to a face. Jim Marshall photographed Cash at the January 13, 1968 prison concert, where he was the only official photographer with access to the day. American IV makes the portrait even more reduced: Cash emerges from darkness beneath stark white lettering, photographed by Martyn Atkins and designed by Christine Cano. The three covers become progressively less decorative and more dependent on Cash himself as the image.