OverDrive is NISD's personal Digital Library. It is a service purchased for the entire district to allow users to check-out ebooks, audio books, music, videos, and other digital material, and use it on their Nooks, Kindles, iPhones, iPads, etc. This is the same system the San Antonio Public Library uses, if you are familiar with theirs. Students will need to use their student number (lunch number) WITH THE S IN FRONT to check-out a book from the NISD Digital Library. OverDrive will not allow an elementary student to check-out middle and high school books.