What's your favorite album cover art ?


While re-organizing my album collection, I found myself admiring the quality and beauty of the album cover jacket. One artist that really caught my attention was Roger Dean who did all (most) of the YES cover jackets. You just don't get this quality of art on CD jewel case inserts. What are your favorite album cover jacket art?
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Just as an interesting aside: Did ya hear how Ahmet Ertegun, president of Atlantic Records, characterized Disraeli Gears when Cream turned in the albums tapes? Psychedelic h*rs*sh*t is what he said! Atlantic released it anyway, and consumers disagreed. 
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