The Beatles in Hamburg later Kirchherr met the Beatles at the Hamburg airport and told them Sutcliffe had died of a brain haemorrhage. In 1966, Voormann was asked by Lennon to design the sleeve for the Beatles' album "Revolver", and also played bass on solo recordings by Lennon, McCartney, Harrison, and Starr. In 1995, Voormann designed the artwork for the three-volume CD sets in The Beatles Anthology series. In 1999, Kirchherr published a book called "Hamburg Days" (a two-volume limited edition) containing a set of photographs by Kirchherr and "memory drawings" by Voormann of the Beatles time in Hamburg. The Beatles returned to Hamburg
Revolver (Beatles album) to be "the best of the bunch, the letter that went unanswered" among a series of reciprocally influential musical statements exchanged between the Beatles and the Beach Boys over 1965–67.<ref name="Medsker/PM"></ref> In a 2007 appraisal of the band's albums, Henry Yates of "Classic Rock" magazine paired it with "Sgt. Pepper's" as the two "essential classics" in the Beatles' canon and described it as "Always the rock fraternity's favourite (and the blueprint for Noel Gallagher's career)". Writing in "Paste", Mark Kemp says that the album "completed [the Beatles'] transformation from the mop tops of three years earlier into bold, groundbreaking experimental