Discounts will be applied before checking out. If you have two discount options, the highest discount will be applied.
We DO NOT combine discounts (i.e. if your catalog is offering 10% off, and the Internet special of the month is 30% off, you will receive 30%, not 40% off).
Catalog customers, please enter your priority code and preferred customer number (located on the mailing label panel) on the shopping cart checkout page.
eBook pricing may vary across eBook Retailers and in countries outside of the U.S.