We specialize in mathematics, physics, hard sciences, psychology and astronomy books.
Money back guarantee if not satisfied with the transaction. Will hold the book for 10 days awaiting payment. Will ship FedEx. Please email for shipping charges.
Personal checks made payable to Orca Knowledge Systems Inc. Accept paper money orders. Accept Purchase Orders and will bill libraries and universities. Also accept credit cards through PayPal (contact us directly and I'll send you an invoice).
Foreign orders: American Express, Visa and Mastercard accepted. Make sure name, address, phone ...[More Information]
Orders usually ship within 2 business days. Shipping costs are based on books weighing 2 lbs, or 1 KG. If your book order is heavy or oversized, we may contact you to let you know extra shipping is required.