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Quantity Discounts

We offer a discount on select products when you purchase 25 copies or more. Discounts are automatically applied at checkout.

Purchase Orders

Submit a purchase order from your school or school district during checkout. You can also fax your purchase order to (434) 977-0021.

Credit Card Payments

For payment by credit card, we accept Visa, MasterCard, Discover and American Express. Proceed to checkout to enter your card information.

International Customers

International shipping is not available. Shipping addresses are limited to the United States.


Please be aware that, as of May 1st, our shipping rates have changed. We encourage you to calculate shipping in your cart above.


We are dedicated to providing you with high-quality materials and customer service. Before purchasing Core Knowledge® materials, please review our returns policy.