Interlibrary loan is the process of one institution borrowing from another through an official request system. This may be helpful to you if you are doing online coursework and need access to your University Libraries. It is not only for books. You can also use it to request articles and other necessary sources. If it is an article you are looking for, submit the request to your University because they can send you the PDF of what you are looking for. if it is a book, use Mattituck-Laurel Library because the pickup location may be more convenient.
The service is meant to access materials for research and academic purposes. If the book costs less than $20, an institution will not send it.