Sgt. Pepper's Lonely Hearts Club Band album carried on the childhood and Liverpool theme with its circus and fairground effects, its pervading atmosphere of the traditional northern music hall that was in both its main creators' [McCartney and Lennon's] blood." "Sgt. Pepper" album cover was designed by the pop artists Peter Blake and Jann Haworth. Blake recalled of the concept: "I offered the idea that if they had just played a concert in the park, the cover could be a photograph of the group just after the concert with the crowd who had just watched the concert, watching them. If we did this by using cardboard
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