I just posted a book and now have second thoughts.  It is a paperback book in great condition. However, it originally came with a bookmark that was attached to the back cover. I removed the bookmark when I first got the book, and the bookmark is now lost.  You can also tell that there was once something attached to the back cover. It's not ripped or damaged in any way, but the perferation marks are still there.

I'm just paranoid. Was it ok to post this?

I would say that's okay if the book is otherwise in good shape, but it  might you feel better to write to the requestor to explain.

I think it sounds fine. 

Sounds fine to me also.

sounds fine to me....if it gets requested it probably wouldn't hurt to tell the person about it...just in case they would want to cancel it, but I doubt it.