Please include your name, address, phone number and credit card number with expiration date. At other times, you may leave a message and we will return your call. Foreign payments should be in U.S. dollars, or by credit card. Please include your e-mail address, telephone number or fax number so that if there are any questions we may contact you.
Prices are subject to change.
We accept Purchase Orders from schools, libraries and government institutions. Maryland residents please add five percent sales tax. We do not accept COD orders. U.S. orders, depending on distance, generally take from one to ten days. All other countries are shipped via surface book post.