Payment, Shipping & Returns


We accept all major credit cards and PayPal payments.

We welcome purchase orders from universities, libraries and other institutions. Please forward a copy of your purchase order to


FREE SHIPPING WORLDWIDE (subject to limitations).

Delivery times are based on availability, handling and delivery companies. International orders may be subject to customs fees and import duties of the destination country. For an additional moderate charge we offer DDP shipping (Delivery Duty Paid) to save your time and expenses and allow you to receive the parcel directly without any customs paperwork or expenses.

If your order includes heavy items, oversized items, and/or multi-volume sets, you may be required to pay additional shipping costs. If additional costs are required, we will provide you with a shipping quote for approval prior to processing your order.

Returns & Refunds

Please note that all returns and refunds are subject to prior approval. If you are not satisfied with any portion of your order, please contact us at We are happy to answer further questions and resolve any issues. Expect your refund in the same form of payment used for your purchase 7-14 business days after we receive your return package.