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Library Research and Digital

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FAQ Topics

I don't have a library card. Can I still use these resources?

We'd love to sign you up for a library card! Cobb County residents, property owners, educators, and employees are eligible for a free library card. Learn how to sign up here!

I don't remember my library card number and/or PIN. What should I do?

To retrieve your library card number, please visit any of our 15 libraries with your current ID. Staff will verify your name and address and provide you with your library card number.

To retrieve your PIN, please visit any of our 15 libraries with your library card. Staff may ask you to verify your information with your current ID. You may also call any of our 15 libraries or our Customer Service Department at (770) 528-2326. Staff will ask for your library card number. Names and addresses will not be accepted over the phone in lieu of a library card number.

Do I have to be in the library to use these resources? Can I use them from home?

Nearly all of our online resources are available to use outside of our libraries. The notable exceptions are Ancestry and FamilySearch. You must be in the library to use these two resources.

Why am I being asked for a password or to log in to use a resource?

When using many of our resources and databases remotely (anywhere outside of our libraries), you may be asked to enter a password or to log in with your library card number and PIN. This allows the resource or database to authenticate you as a Cobb County library cardholder.

How do I find the current GALILEO password?

To log in to GALILEO when not in the library, you will be asked for a password. The password changes quarterly. Here's how to find the most current password:

  1. Log in here.


  1. Log in to your library account.
  2. Click "My Account".
  3. Click on the "Personal Information" tab.
  4. The password will be listed at the top of the tab.
I need help getting started with OverDrive with a specific device.

OverDrive has created special Getting Started pages for each supported device including video playlists that will walk you through setting up and using your device with the OverDrive collection.

I am having trouble in OverDrive with a specific device, or I am receiving an error message when I attempt to download an OverDrive book.

OverDrive has prepared a detailed list of common error messages organized by device.

How do I return a book early?

OverDrive has prepared a Help Page to assist with returning your items early.

I received an error that states, “(1) Library Card has expired. Please contact your local library.” or a message that states “(1) User BLOCKED” when I try to sign in to OverDrive.

Library cards must be current and in good standing in order to access the downloadable collections.  If you receive one of these messages, you may need to renew your library card at one of our 15 locations or you may have library fines on your account in excess of $10.00 that are preventing your card from accessing the collection.  Please feel free to contact your local library for assistance and for more information regarding your library account.

I got an error that says “Error! Function call made with one or more invalid parameters: “callback”, “resultId”.”

When an OverDrive hold becomes available but the automatic checkout option is not selected for the item, you may see this error if you attempt to retrieve your item through the main library catalog.  

In order to successfully download your available hold, simply open your OverDrive app on your mobile device, select the Cobb County Library from your menu, log in to your OverDrive account, and click on the “Holds” tab. You should see your item on your “Holds” page with the option “Borrow” next to it.  Click “Borrow,” and you should be able to proceed with your download right away.  

If you are using a PC, you can always access your OverDrive account by logging in.  Click the “Holds” tab and select the “Borrow” option on the available hold.

I need help getting started with RBdigital.

RBdigital has prepared help pages that provide how-to articles, videos, troubleshooting help, and links to software and apps for the RBdigital collections.

I’m receiving the error message: ‘Library card or PIN not recognized. If you are using the mobile app, please go to the website to update’.

If you see the above error message while on the RBdigital app, please follow these steps:

  1. Visit our RBdigital page.
  2. Click “Sign In”.
  3. Enter the correct RBdigital username and password for the patron’s account used to sign in to the app.
  4. The website will display the error: “Library card or PIN not recognized.  If you are using the mobile app, please go to the website to update”.
  5. In the error message, the sign in information will change and request the library card & PIN associated with the account.
  6. Enter the correct library card and PIN for the account again.
  7. The account should now complete the sign in process.
  8. Go back to the RBdigital app.  Close and reopen the app (no need to sign out).  The app should open with a completed sign in and allow checkouts of RBdigital.
I don’t see the magazine back issue that I need in RBdigital Magazines.

Back issues in RBdigital Magazines are available from the time that the magazines were added to the library collection.  Some magazine titles have more back issues available than others.  

To access the back issues for a magazine, select the desired magazine, and then select “all issues” to see the list of available back issues. If you cannot find the issues that you need, please feel free to contact your local library for assistance possibly locating the issues through other resources.


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Georgia Room

Find local history and genealogical resources in the Georgia Room at Switzer Library, a special collection serving the needs of a broad spectrum of users with diverse informational and educational pursuits.

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Achieve your personal and professional goals with LinkedInLearning (formerly Lynda), an online learning site that hosts a constantly growing library of over 3,000 courses.