To celebrate fifty years of its album chart, The Observer Review’s panel of critics argues for 50 albums that changed music.
IMHO this kind of charts is only a curiosity. It’s something to discuss on the beach when there is nothing else to do. Maybe younger people could find something “new” to listen to.
Of course the musical area is the popular music in the most general meaning. There is no experimental music, and not even the jazz is mentioned (but Miles Davis).
Best positions are:

1. The Velvet Underground and Nico (1967), the album with the Warhol’s banana on the cover.
2. The Beatles – Sgt Pepper’s Lonely Hearts Club Band (1967)
3. Kraftwerk – Trans-Europe Express (1977)