Inter-library loan is a popular term in the library world and refers to the process of one library borrowing materials from another library. In the academic and research community, it is also known as resource sharing. Other synonyms for inter-library loan include document delivery, borrowing books from other libraries, reciprocal borrowing, and library loan. These terms all describe the same practice of sharing research materials between libraries. With the increasing digitization of libraries and their collections, inter-library loan has become an easier and more efficient process, allowing researchers and students to access a wider range of resources than ever before.