Shipping is 9% percent of your total order or a minimum of 15.00 for orders under 100.00. We do our best to ship once, but sometimes it is necessary to backorder an item due to publisher availability or reprinting. We will ship a minimum of 80 percent of your order at once and the back order usually is 10-30 days. We will call/email you with any unforeseen issues. We want to make sure that you're a happy customer! Books are packed in their display boxes, so all you have to do is open and use!