We're sorry to hear that! What kind of a mailer did the books come in? We would be surprised indeed if it was an order we packaged, as we typically spare no expense in that department, whereas the huge company that is our POD supplier is notorious for very mixed performance in that regard. While any case where it cannot be proven that the books themselves were packaged poorly AND by us where book arrived damaged is out of our control for the most part, and hence we are not directly liable for that, you are not without recourse here, as we are happy to replace books at cost when our customers get the short end of the stick in one way or another.