Terms of sale: I guarantee all material unconditionally. Returns accepted for full refund within ten days, if returned in the same condition as sent. Payment by PayPal is preferred. I also accept personal checks (payable to David W. Bowers) and money orders. Or you can go thru Biblio if you would like to use a credit card. Shipping is $4 for Media Mail, $5 for Priority Mail or UPS Ground. Orders sent via UPS will have the tracking number emailed to you. Shipping costs are based on books weighing 2.2 LB, or 1 KG. If your book is very heavy or oversized, extra shipping charges may apply. All books over $200 must be sent via UPS or Priority Mail.