To take advantage of this promotion, follow these steps:

1. Add at least 4 eligible items to your Shopping Cart. Eligible items will have a message such as "This item is eligible for our Buy 4 Books for the Price of 3 Sale" on the product detail page.
2. Proceed to checkout. When you're done shopping on our site, click the "Proceed to checkout" button in the Shopping Cart. Your shopping cart should include at least four qualifying items during the checkout process to qualify for this promotion. Additional conditions are listed below.
3. On the final checkout page, we will discount the lowest-priced item. A promotion credit for the amount of the lowest-priced item will appear in the upper right corner of your Order Summary during the checkout process. If you use 1-Click® ordering, the promotion will be automatically applied.