Help & Support > Online Payment Options

Credit Cards

We prefer Visa, MasterCard, Discover and American Express credit cards only.

Call customer service to arrange payment

After completing the online checkout call customer service toll free: 1-800-336-4627 (outside the United States: 1-610-649-7565) to provide your payment information.

Personal or Business Checks

We reserve the right to hold orders paid for by check for up to 10 business days from date of deposit.

Money Orders

Must be in U.S. dollars only, and drawn on a U.S. bank/account.

Purchase Orders

We accept purchase orders from libraries, schools, colleges, universities and government institutions only.

Ordering instructions can be found here.