Book-mart Press (www.courier.com) also supports digital binding and finishing production. For short-run books, the company provides sewn paper and case binding, as well as adhesive paper and case, repkover (or layflat), saddlewire, wire-o and thermal adhesive tape. Book-mart reports that for very short runs of one-to-500 copies, it offers on-demand DocuTech electronic printing. It all depends on the book's end use. "We try to find out from a publisher how a book is sold, who's using it and will it be a one-time read or used on a daily basis," explains Michelle Gluckow, executive vice president. In order to save money, she says that binding is specially chosen based on this end need. For instance, a reference book used by a student requires strident durability and tightly sewn, stitched or glued components. In contrast, a trade paperback that's good for one read before ending up on a shelf can satisfy less stringent requirements, thus saving its publisher unneccesary cost.