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 would sometimes annoy his bandmates, "Paul appreciated John's contribution on "Pepper". In terms of quantity, it wasn't great, but in terms of quality, it was enormous." In the "NME"s article "25 Albums With The Most Incredible Production", in 2014, Emily Barber described "Sgt. Pepper" as "kaleidoscopic" and an "orchestral baroque pop masterpiece the likes of which has rarely been matched since". Inglis notes that almost every account of the significance of "Sgt. Pepper" emphasises the cover's "unprecedented correspondence between music and art, time and space". After its release, album sleeves were no longer "a superfluous thing to be discarded during