The discount is calculated based on the listed retail price for the book(s) and on any combination of titles ordered and shipped to one address at one time, For customers in the United States, Puerto Rico, and U.S. Protectorates.
|2 - 4||20%|
|5 - 9||25%|
|10 - 14||30%|
|15 - 19||35%|
Note: Shipping and handling charges are added to all shipments.