InterLibrary LoanInterlibrary loan (ILL) is a way for you to request items not held at ASU, UNCA, or WCU libraries. We use an online software system called ILLiad for our interlibrary loan service. There is no charge for this service. Delivery time for materials requested through interlibrary loan ranges from 2 days to 2 weeks. To avoid delays, please provide complete citation information.