I browsed the help docs but did not see anything about it. I just received a book and I want to know if it is RWAP if there is a large pen marking on the cover. I want to be able to repost this book, but I can't find anything about the condition of the cover other than no missing/gnarled covers. Thanks in advance for your help and advice.

Also, I'm bummed. Out of 6 books I just had mailed to me, 2 are definite RWAP from heavy water damage and this 1 is questionable.

Writing on the cover should not make the book unpostable unless it is so bad that the book would no longer be "in good condition, and not excessively worn".

Sorry you got so many bummer books at once, I hate when that happens.

I just rechecked the help docs and don't see anything about ink on the cover either.  I'd be disappointed to receive one like that and wouldn't repost it, but I don't think you can mark it RWAP.  Bummer.  I might let a very small ink mark (1/4" or so) slide in terms of posting, but definitely not a large one.

I hate creased covers, too, but they're also not a reason to mark RWAP.  They just disappoint me.

What was used to mark on the book (pen, crayon, grease pen, etc)?  What kind of material is the cover (glossy coated paper, etc)? 

I've had really good luck getting marks off of dust jackets and glossy paperbacks.  I use a kind of artist's eraser - not sure what it's called - that is gray and has a consistency similar to bubble gum.  Or, if the cover is waterproof, you can use a magic eraser with just a touch of water to get rid of the mark. 

I'm wondering if it is some sort of remainder mark?

I don't know either but it's okay if there are stickers on the covers of books so maybe pen markings aren't mentioned in the Help Docs because they don't matter.

Maybe ask your TG or Live Chat - they're the ones you're encouraged to ask for what that 's worth.