I discovered that a book requested by a member was damaged while on my shelf. I asked for help, but didn't understand how to remove it from my list. Can anyone help me? 

Below are instructions from the Help Center. Note: If you received the request and clicked "cannot mail," the book should have already been removed from your shelf.

To delete a book from your account Bookshelf:

• Place your cursor over My Account in the toolbar at the top of any page on the site
• Click My Bookshelf in the menu that drops down
• Click to place a checkmark in the box to the right of any book you want to delete
• Click the gray "Delete" button at the far right in either the yellow bar on top or bottom of the page.
• You can delete multiple items at once.

If you have Posted a Wish Listed book by mistake and it is involved in a Wish List offer, you need to wait until the book is requested, and then decline it by clicking "I cannot mail".

Note: If you have clicked "I cannot mail" on a request, or clicked "Cancel" on an active outgoing transaction, or the system has canceled your transaction for failure to complete the sending process by the deadline, the book involved will have been automatically removed from your account Bookshelf.

Hope this helps!

If it's already been requested then you have to choose I Cannot Mail This Book for Other Reasons.  This will remove the book from your shelf.  If it's on WL hold you need to wait until they accept it before you can choose I Cannot Mail for Other Reasons (declining requestor conditions just moves it to the next person).

If you accepted a request for it than you can just cancel it unless it's been marked mailed.  If it's been marked mailed then PBS needs to cancel it and you have to ask not the requestor.