Interlibrary loan is a service that allows library users to borrow books and other materials from libraries outside their own. If a local library does not have a specific item, patrons can request it from another library, expanding their access to a wider range of resources. This service is beneficial for research and study, as it enables users to obtain rare or specialized materials that may not be available locally. Typically, the borrowing library will handle the logistics, including shipping and returning the items, making it a convenient option for users seeking additional information.