Because my first customer to buy Balance on PayPal was my cousin in Australia, I suddenly remembered I should make the site available for people outside of the U.S., with adjustable shipping costs for those people. So here is my corrected button, with international payment and shipping options. You will notice a slight change in shipment charges. For those in the U.S. buying only one or two books, it costs less. For those buying more than 2, it will cost more.