We provide free UPS shipping for your buyback order... The package can be taken to any UPS Store or drop-off location - ask for a receipt so you have a record of them receiving your package; this process also scans it into their system. A UPS drop-box may be used but you will not have a receipt and we cannot be responsible if the package does not reach us. Your books must begin tracking within 7 days from the date you submitted your Buyback Order to guarantee the quoted buyback price. If you do not send your books to us within 7 days, your Buyback Order will automatically expire and you will need to submit a new order.