Over the years we've picked up a few extra reference books and rules that might be of interest to yuh. In most cases, we've only got a few of these in stock and they might sell out before we get to your order. If this happens, we'll contact you first to see if you'd like to substitute another title (or even a building), or would rather have a refund. Also, some of the books may be used. If so, the description will clearly state this and we'll provide you with detailed information about the book's condition.