Online Document Delivery
Document delivery (DD) is a library service that copies non-returnable literature required by library users, including book chapters, images, journal articles, manuscripts, maps, reports, and other library collections, and then emails or sends them to the library users directly or indirectly. In most cases, document delivery is free to library users. Occasionally, a fee is charged, depending on where the library literature is located and delivered. Supported by today’s information technologies, document delivery has become an innovative library service. It has not only eased contradictions between shrinking library funds and limited local library resources as well as library users’ growing expectations and needs but also has played a strong role in supporting academic teaching and research programs.