AbeBooks is an online marketplace that connects buyers with sellers of new, used, rare, and out-of-print books. They offer a variety of shipping options, but free shipping is not always available. It depends on the seller’s individual shipping policies. Some sellers may offer free shipping on certain items, while others may charge a fee. If you are interested in purchasing a book from AbeBooks and are concerned about the cost of shipping, you can contact the seller directly to inquire about their shipping policies or look for items that are marked as “free shipping” on the AbeBooks website.