A courtesy card lets you use library materials if you are not affiliated with the University of Illinois. You can tell what type of card you have based on the two letters on the right side of the card. There are three types:

• LH courtesy card - Visitors sponsored by an academic department; Members of U of I President's Council; Holders of Big 10 Academic Alliance ID Card; OCLC Reciprocal Faculty Borrowing Program Card holders from in state or surrounding states; members of Allied Agencies; and K-12 Illinois teachers)
• LL courtesy card - Non-Urbana campus affiliated state of Illinois residents with valid ID; persons with Urbana campus Spouse IDs; U of I alumni living in Illinois; Non-registered Urbana campus doctoral students living in Illinois; Extra Help workers; and Research Park Employees
• LB courtesy card - Non-Urbana campus affiliated persons residing outside the state of Illinois with valid ID