Professional staff of non-profit organizations (cultural, religious, scientific, or medical institutions in the Chicago metro area), doing research for those institutions may apply for a Borrower's Card, valid for three months, if they present:
*Borrower's cards do not grant patrons access to NU Library's online databases, which require the use of a NetID. NUIT assigns NetIDs only to current NU students, faculty, and staff members. Any library guest can request a free temporary NetID (or "day pass") for use on the premises (see Guest NetIDs [2]).
Links:
[1] mailto:circulation@northwestern.edu?subject=Borrowing%20Privileges
[2] http://www.library.northwestern.edu/services/nu-alumni-visitors-and-friends/guest-netids