To Order by purchase order:

1. Complete your order online.
2. Choose PurchaseOrder as your payment type.
3. Submit your order.
4. Fax a copy of your order confirmation to 617 357-1889.
5. Books will be sent upon receipt of your faxed purchase order.
6. Please note that all international orders must be paid in full before books are shipped.

NOTE: Effective July 1, 2010, purchase orders must total $500 or more.
For purchases less than $500, order by credit card.