All Books are fully guaranteed and returnable within 7 days of receipt. Massachusetts residents please add 5% sales tax. Postage is additional. Libraries will be billed to their requirements.Deferred billing available upon request. Besides Checks, we accept Cash, Mastercard, Visa, American Express, and Paypal.
Postage rates: US priority mail $7 for the first book, media mail, $6 for the first book. Global priority mail $13.50. Large and heavy books, sets, etc. will be calculated on an order by order basis.