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,
Sgt. Pepper's Lonely Hearts Club Band as a genuine art form. Riley says that pop had been due this accreditation "at least as early as "A Hard Day's Night"" in 1964. He adds that the timing of the album's release and its reception ensured that ""Sgt. Pepper" has attained the kind of populist adoration that renowned works often assume regardless of their larger significance – it's the Beatles' 'Mona Lisa'." According to Rodriguez, an element of exaggeration accompanied some of the acclaim for "Sgt. Pepper", with particularly effusive approbation coming from Rorem, Bernstein and Tynan, "as if every critic was seeking to outdo the other for