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 | Libraries will observe the Independence Day holiday July 3–5, 2026. Most libraries will be closed Friday, July 3.
The following branches will be OPEN on July 3 and closed on July 4: ʻAiea, ʻĀina Haina, Hanapēpē, Hawai‘i Kai, Hilo, Kahului, Kailua-Kona, Kīhei, Liliha, Makawao, McCully-Mōʻiliʻili, Princeville, Thelma Parker, Wahiawā, Waialua, Waimānalo, Waikīkī-Kapahulu, and Waipahu.

HOLIDAY CLOSURE | In observance of Statehood Day, all public libraries will be closed on Friday, August 21, 2026.

ALERT | In observance of Labor Day, all public libraries will be closed Saturday, September 5 through Monday, September 7, 2026.