Any order under 10 ounces is usually shipped first class in a bubble envelope. If over that I try to use the least expensive way to ship, and that would probably be media mail with a delivery confirmation number. Sometimes the cost to send priority isn't that much more when sending multiple books in the same box. Please bear these two factors in mind when purchasing your books.
If for some reason you don't wish the book after getting them, please send me an e-mail telling me the issue and upon receipt of the books or book back, I will issue a full refund if they are in the same condition as when they left. This must be done within 2 weeks of the purchase.