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 a larger scale than ever before". Writing in his book "Electric Shock", Peter Doggett describes the release as "An Event" and "the biggest pop happening" to take place between the Beatles' debut on American television in February 1964 and Lennon's murder in December 1980. The album's impact was felt at the Monterey International Pop Festival, the second event in the Summer of Love, organised by Taylor and held over 16–18 June in county fairgrounds north of San Francisco. "Sgt. Pepper" was played in kiosks and stands there, and festival staff wore badges carrying Lennon's lyric "A splendid time is guaranteed