The Library Reference Desk is staffed during all Library hours. Librarians at this desk can answer any of your research questions.
If you're working on an especially difficult research question, you can also schedule an appointment with a COD librarian! COD students, faculty and staff may schedule one-on-one appointments for help with research and using the Library's resources - just use the green "Schedule a Research Appointment" button on this page.
You can call the Library at (630) 942-3364 and speak to a librarian during regular Library hours.
Fill out the Library's e-mail reference form with as much information as possible and a Library staff member will e-mail you back by the next business day.Show the E-mail Form
Use this form to send us your question. Provide as much information as possible.
To chat with us, use our embedded chat windows like the one on the upper, right part of this page or launch chat using the "Chat With Us" button that's in the header of every page:
Chat is generally available during regular Library hours.
To contact the Library via SMS/text, just send a message to:
Please note, depending on your mobile service plan, sending and receiving text messages may result in charges from your mobile provider.