BOOK/MEDIA RATE postage is included in all prices. For first class/air mail please add $5.00 per each copy, except for Basics of Sleep Behavior (add $1.00 per copy) and Sleep and Wakefulness (add $ 7.00 per copy).

We do not accept "standing orders." All orders must be pre-paid with a check or money order in $US made out to "WebSciences International" (no credit cards or purchase orders accepted). Prices are applicable to both individuals and bookstores/brokers. Once an order is placed, no refunds are available; books may be returned for credit to be applied to future purchases. Orders are generally filled within five working days. Please contact us for mailing pricing outside the United States. We will mail the shipment book/media rate, unless otherwise directed, and upon receipt of a check, it should take approximately 4-6 weeks to receive you order.