• To ensure continuity of research and study by the entire Columbia community, the Libraries remain open—both physically and virtually through CLIO and our Ask A Librarian service.
• Library spaces remain open for Columbia faculty, students, and staff. Please check hours before visiting. 
• Research appointments for external researchers will continue. Please follow instructions from the individual research library for campus access. 

Read a message from the University Librarian here. 

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. Please continue to check this page for updates. 

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.