I have a book that is in great condition inside. The potential problem I see with it is that there was sticker residue on the front cover, and it's been removed, but that removed the ink from the cover, so now there's a little white rectangle where the sticker residue used to be. I hesistate to post it b/c I don't know if it would count as a stain or not.

Opinions?

I really wouldn't consider that to be a stain but more similar to minor cover wear. It sounds postable to me.

I have always considered cover peel (which is what I call that) as postable. There are some members who consider it a tear though, so if it is over 1inX1in you might want to PM and let the person know. I usually am not in favor of PMing about postable books, but I would much rather give warning of an issue that is disagreed upon among the membership than argue after the fact on whether it is postable.