Payments are made securely through Paypal.
On the page for each book you'll find a "BUY" button which adds your order to the shopping cart. By clicking on the shopping cart button you can check the status of your order and make adjustments.
PayPal is a payment gateway that allows businesses and consumers with an email address to send and receive payments online securely, easily and quickly. Over 100 million people in 55 countries use Paypal. PayPal is free, secure, global and respects your privacy. That's why we leave the transaction part of your purchase up to Paypal.