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About: Contact Us

Contact Us

If you have questions or need help from a CSM Librarian, please contact us:

  • Chat with a CSM Librarian: Real-time help from a CSM Librarian available whenever the library is open:
  • Email: Complete our email form and we'll get back to you
  • Text: Text your questions to (650) 887-3669
  • Phone:
    • Circulation at (650) 574-6548 - Questions about technology, your library account, fines, etc.
    • Reference at (650) 574-6232 - Questions about books, research, using CSM Library, etc.