Lousy thread title, I know, but I was thinking of artists who either (a)put out consistently great album covers or (b) acts whose covers were so similarly-themed that you knew it was them before you even saw the title.
In the latter category I'd say the Smiths and Cocteau Twins were very consistent. The Smiths generally had relatively obscure 50's era B&W photos for their releases, especially the british versions (exception would be Queen is Dead, I guess). Cocteau Twins (and most 4AD releases) had very similar-looking album covers as well.
Who else?
