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Guide to Columbia Law Library Services and Policies

Reference Desk Hours

Librarians are available during the following hours* for in person, chat, and email reference:

Monday-Friday 10am-6pm

Librarians are available during the following weekend hours* for chat and email reference:

Saturday and Sunday 12pm-6pm

*Hours are subject to change and national and university holidays. 

Contacting the Reference Desk

Reference and research assistant from a reference librarian is available via email at, via Chat, and in person in the reference office just past the entrance to the Law Library during the stated hours above. No prior appointment is needed to consult with a reference librarian, although you are welcome to send an email to the Reference Desk or to one of the reference librarians if you'd like to set up an appointment for a longer research consultation. 

What Kind of Help We Can Provide

The reference librarians can help with a variety of tasks, including:

  • research planning
  • preemption checking
  • source gathering
  • web searching
  • navigating online sources and electronic databases, including Bloomberg Law, Lexis, and Westlaw
  • requesting items through Interlibrary Loan