We use PayPal as our service for managing the sale of the book. PayPal has been the premier agency in this business for many years and is one of the highest rated services for secure transactions on the Internet.
If you have concerns, go to PayPal.com and look at their security policy. They are the most trusted for service of this type. Most people who shop on E-Bay use PayPal for their transactions. PayPal shares NO financial information about purchasers, even to us!
