AbeBooks is an online marketplace specializing in the sale of books, fine art, and collectibles. It acts as an intermediary, connecting buyers with a global network of sellers, including independent bookstores, professional dealers, and private collectors. AbeBooks offers a wide range of items, from new and used books to rare and out-of-print editions, as well as art and other collectables. The platform is known for its focus on rare and collectible items and its role in supporting independent sellers.