A Passion for Mathematics: Numbers, Puzzles, Madness, Religion, and the Quest for Reality Clifford A. Pickover

Fast Shipping and Professional Packing

Because of our long-standing relationship with UPS FedEx DHL, and other top global carriers, we can provide various shipping options. Our warehouse personnel will pack all goods to our exacting requirements. Before shipment, all items are carefully examined and securely secured. We ship to thousands customers each day from multiple countries. The fact that we are committed to becoming the biggest online retailer in the world is clear. The warehouses are located in Europe just as they are in the USA.

Note: Orders that include more than one item are assigned a processing period in accordance with the item.

Prior to shipment, our team will perform a thorough inspection on the items you purchased. The majority of orders are delivered within 48 hrs. The delivery time will be between 3-7 working days.

Returns

We do not manage the stock at our factory and warehouse. Actual stock levels may fluctuate at any moment. It is possible that your order may be out of stock when your order has been made.

Our policy lasts for thirty days. We are unable to exchange or refund your order after 30 days from the date of purchase.

The item you purchase must be in its original packaging and be unused. The item must be returned in the original packaging.