• Libraries are open. Check hours here before visiting. 
• Please note that access to the Morningside campus is limited; check campus access updates before visiting. 
• Ask a Librarian service remains available. 
• Learn more about alumni privileges. 

• Library materials may be returned to any open library location or to the return bins outside of Butler Library; please check campus access updates before visiting. 

Most library materials are renewable online via your My Borrowing Account in CLIO. If you are trying to renew items that are non-renewable, such as Borrow Direct, Interlibrary Loan, or Course Reserves materials, please contact circulation@columbia.edu for assistance.

The C.V. Starr East Asian Library is temporarily closed for construction, with a planned reopening for January 2025. Learn more here. 

The Mathematics Library will be temporarily closed for refurbishment in summer 2024, with a planned reopening for September 2024. Collections remain available through our Pick-Up and Scan & Deliver services. Please continue to check this page for updates, and email math@library.columbia.edu with any questions. 

The Arthur W. Diamond Law Library will be closed for renovation beginning in May 2024. More information about that renovation can be found on the Law School’s website.

For questions not answered here, please email lio@columbia.edu.