There are many websites that provide overstocked books. BookDepot.com, for instance, is a wholesale online bookstore that sells bargain products at 50 to 90 percent off retail price. Overstock.com offers many overstocked products and includes books among its offerings.
Once you've found a few places to purchase overstocked books, compare prices, size of inventory and quality of books. Some sites, like Overstock.com, feature reviews from customers regarding the quality of purchases.
You can purchase any number of products online through these sites. Once you've decided which books to purchase, just enter your credit card information and address, and purchase your products.