We extend a 20% educational discount to college stores selling any of our titles as textbooks.

We ship orders by UPS ground, passing along the exact shipping cost plus $4.00 for handling.

We require prepayment for all orders.

We are happy to provide "pro forma" invoices to facilitate payment by check.

We accept domestic checks as well as MasterCard and Visa credit cards.

For international orders we prefer credit cards. Alternatively, we will accept checks drawn on a U.S. bank in U.S. funds.