Used book

A used book is a book which has been read before. Once the book has been read it is either kept by the reader or sold or given to a second-hand or used book shop. Some new book shops also carry used books. Though the original authors or publishers will not benefit financially from the sale of a used book, it helps to keep old books in circulation. Sometimes very old, rare, antique, or simply out-of-print books can be found as used books in used book shops.