Amazon relies heavily on its supply chain partners for accurate fulfillment and on-time delivery, thereby entrusting many components of customer satisfaction to its partners. But ultimately, it is Amazon that is responsible for the service that consumers experience. Although the company lists, and effectively advertises, millions of titles, consumers must read the fine print when it comes to fulfillment of orders. Some titles are available for shipment within 48 to 72 hours, and the remainder of in-print titles are generally available within 4 to 6 weeks, out-of-print titles generally are available in 2 to 6 months, but some of these may not be available at all.