If it's the cover art you're talking about, then I don't think there's much you can do. The paper is so thin, trying to remove anything could prove difficult without further destroying the paper and/or the artwork.
I can only suggest keeping it in a safe place until you find a replacement. Don't place anything like headphones on it (I've found that out on accident, the grease from your sweaty ears goes into the pleather on the headphones, and paper draws it out leaving a stain. It's gross.)