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Photo of the Q&A Desk at the Main Library

Contact Information

If you want to ask a librarian a question, email library@cambridgema.gov.

To call the library, see each department's phone numbers below:

Main Library

Department ...for questions & information about

Circulation Desk

  • Library Cards
  • Account Information
  • Renewing Materials

Q&A Desk

  • General Library Services
  • Today's Programs and Events
  • Directions
  • Adult Title Checks (books, DVDs, CDs)
  • Placing Holds
  • Computers, Internet, Wireless
  • Museum Passes

Research Desk

  • Research and Reference Questions
  • Cambridge Questions
  • Databases
  • How to Use the Catalog

Tech Bar


  • Takeout Technology
  • Public Computing
  • Printing

Cambridge Room

  • Cambridge History
  • Archives and Special Collections
  • City Directories
  • Genealogy Research

Children's Room

  • Youth Programs and Events
  • Reader's Advisory for Youth
  • Youth Title Checks (books, DVDs, CDs)

Teen Room

  • Resources for Teens
  • Teen Programs and Events
  • Reader's Advisory for Teens
  • Teen Title Checks (books, DVDs, CDs)

STEAM Programs and The Hive

  • STEAM Opportunities and Resources
  • Learn about the World through Science, Technology, Engineering, Arts and Math
  • The Hive Makerspace

Literacy Center
(located at Central Square Branch)


  • ESOL Classes
  • Language Learning Resources
  • Literacy Volunteer Opportunities

Administrative Offices

  • Job Opportunities
  • Board of Trustees
  • Friends of the Cambridge Public Library
  • Suggestions and Complaints



Branch Locations

Branch Phone Number

Boudreau Branch

245 Concord Ave.
Cambridge, MA 02138


Central Square Branch

45 Pearl St.
Cambridge, MA 02139


Collins Branch

64 Aberdeen Ave.
Cambridge, MA 02138


OConnell Branch

48 Sixth St.
Cambridge, MA 02141


ONeill Branch

70 Rindge Ave.
Cambridge, MA 02140


Valente Branch

826 Cambridge St.
Cambridge, MA 02141


Contact Us

How can we help?

Please provide as much detail below as possible so City staff can respond to your inquiry:

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Service Requests

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