In the recent celebration of vinyl, there was a constant underlying theme of the beauty of the vinyl album. An important element in the beauty of vinyl albums are the covers which act as protection, adverts and dispensers of information on the product they contain.
There are many sites on the Net which are dedicated to the album sleeve as a work of art. I have recently discovered Japanese site which specialises in the jazz label Bluenote. The site contains not only the front covers but the reverse sides as well. Drop over and salivate at the sights there!