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,
Album cover quickly becoming a collector's item. The move to the small (less than 1/4 the size of a record) CD format lost that impact, although attempts have been made to create a more desirable packaging for the CD format, for example the reissue of "Sgt. Pepper", which had a cardboard box and booklet, or the use of oversized packaging. The importance of design was such that some cover artists specialised or gained fame through their work. Such people include the design team Hipgnosis, through their work on Pink Floyd albums, amongst others; Roger Dean, famous for his Yes and Greenslade covers;