Ask a Librarian

Online Chat

Get online research help — click the ‘Ask Us’ button available on the header of every library webpage.  If chat is offline, see below for more research assistance.

Fall 2020 Chat Hours

Monday – Thursday: 9:00 am – 9:00 pm

Friday: 9:00 am – 5:00 pm

Weekends: 12:00 pm – 8:00 pm


Ask your questions via email:

Available: Anytime. We try to respond within 24 hours (Mon-Fri) and as soon as possible over weekends and holidays.



Available: Check the library hours schedule.

Visit the Reference Desk

Please check the Fall 2020 Library Operations guide for the most up-to-date information about reference services.

A professional Librarian can answer your questions at the Reference Desk in the North Reading Room, Melville (Main) Library.

A professional librarian is available:

Monday – Thursday: 9:00 am – 5:00 pm
Friday: 9:00 am – 3:00 pm

Contact a Library Liaison and Subject Specialist

If you have questions that require subject expertise, you may want to contact our Library Liaisons directly.

*For the Health Sciences Library: Call 631.444.2512 or email:

*For Other Branches (Music, Chemistry, etc.) and Collections: See this page.