I ordered a hardback book through PBS. The request was accepted and printed and the sender never marked it sent so PBS cancelled it. I had to WL the book then as it was the only copy in the system and someone else posted it so I ordered it from them along with another book they had on their bookshelf. Today, I get the first book that was never marked sent. The spine is ripped, some of the pages are torn, one has actually been taped back together and some of the pages are close to falling out. I am not sure this was postable in the first place. Anyway, I am not sure what I should do or do I do nothing since I got my credit back anyway and have another of this book on it's way to me? I certainly will not be posting this book, it'll go into the yard sale I am having in a couple of weeks.

It's definately not postable in that condition and good for you for not reposting it!  Can you PM the sender of the bad copy still?  If so, I would do that.  Otherwise I'm not sure what else you could do.  You could contact someone higher up, but since you got your credit back I"m not sure if it would do anything...

You are not obligated to give a sender a credit for a book that they didn't mark mailed and you ended up with 2 copies.  If you had not ended up with the 2nd copy then the proper thing to do is to go into your transaction archive and mark it received. But since they didn't mark it mailed and didn't pm you telling you they mailed it-you do not have to mark it received and be out 2 credits when you only wanted 1 book.

You don't have to do anything.  The Help Center is very clear that you do NOT have to mark the first copy of the book received and give the sender credit.  If you did not have another copy on the way, then you'd need to mark received.

I received a book from a canceled transaction!

This usually happens when the member that sent this book did not complete the sending process by marking the book mailed, but sent the book anyway.  In these situations, there is a possibility that the requestor will end up with 2 copies of the book.

If you received (or will receive) two copies of the book, you are not obligated to give a credit to the sender whose transaction was canceled.  If you got (and will get) only one copy, you should mark the book received so that the sender gets credit.

Misty, don't worry about the book from the first sender.  They did not follow the PBS rules, and sent out a book for which there was no current, valid transaction.  And you ordered another copy of the book.  The guidelines clearly state you do not need to mark it received nor do you owe Sender #1 a credit in this type of scenario (regardless of the condition it arrived in.)  If a transaction times out, and Sender mails book anyway, the Receiving Member is not obligated to credit the Sender and may keep the book and do whatever they want with it, including posting it to their bookshelf.  (Although many times, receiving members will generously credit the sender since they did receive a book and expected to spend a credit to get it.  This would not apply to you since you received a copy that sounds as if it is unpostable and therefore not allowed here at PBS.)

Okay, looks like I'll just do nothing on this one. Thank you all for the help!