Professional license and certification prep

Time to get certified!

Free online classes

Gale courses

Gale Courses logo
Gale offers free classes to help you establish your professional certification in many different fields. Go to the Gale Courses catalog and search for “certification” to see them all.

Other test prep tools

You can find additional free license preparation tools here.

Testing & Education Reference Center

Petersons Test Prep

You have questions. We have answers.
We're librarians. (It's what we do.)

Ask us a question

ALERT | In holiday observance of Statehood Day, all public libraries will be closed on Friday, August 15, 2025.

ALERT | In holiday observance of Labor Day, all public libraries will be closed August 30 to September 1, 2025.

ALERT | In holiday observance of Veterans Day, all public libraries will be closed on Tuesday, November 11, 2025.

ALERT | In holiday observance of Thanksgiving Day, all public libraries will be closed on Thursday, November 27, 2025.

ALERT | In holiday observance of Christmas Day, all public libraries will be closed on Thursday, December 25, 2025.

ALERT | In holiday observance of New Year's Day, all public libraries will be closed on Thursday, January 1, 2026.