Does this cover of Dune look familiar?
Probably because it's also the cover for Manor Books' 1975 edition of The Three Stigmata of Palmer Eldritch:
i09.com wrote this coincidence up here.
"You can just imagine them at the publisher: 'Yeah, we already paid for this art . . . what the hell, space, planets, whatever- use it!'"
At least they used the same art twice instead of allowing some artist to completely copy another cover and pass it off as his own:
I guess that's just how science fiction rolled in those days - always hustling.