The Beatles (album) stereo only. In the UK, the following album, "Yellow Submarine", was the last to be shipped in mono. The mono version of "The Beatles" was made available worldwide on 9 September 2009, as part of "The Beatles in Mono" CD boxed set. A reissue of the original mono LP was released worldwide in September 2014. The album's sleeve was designed by pop artist Richard Hamilton, in collaboration with McCartney. Hamilton's design was in stark contrast to Peter Blake's vivid cover art for "Sgt. Pepper's Lonely Hearts Club Band", and consisted of a plain white sleeve. The band's name, in Helvetica,
Revolver (Beatles album) The 1987 international CD release standardised the album's content to the original Parlophone version. "Revolver" expanded the scope of pop music in terms of the range of musical styles used on the album, compositional form, and the lyrical content of its songs. The album was influential in advancing principles espoused by the 1960s counterculture and in inspiring the development of subgenres such as psychedelic rock, electronica, progressive rock and world music. Many music critics recognise it as the Beatles' best album, surpassing "Sgt. Pepper's Lonely Hearts Club Band". The album was ranked first in Colin Larkin's book "All-Time Top 1000