St. Charles City-County Library buildings are open for browsing and more. Learn more.

For Teens -

Standardized Tests

Learning Express Library
You will need to enter your library card number and last name to use this database.   You'll find study guides for GED, ACT, SAT, College Prep, High School and more!

Missouri HiSET
If you want to pursue a rewarding career or continue your education, then getting your highschool credential is the most important step you can take.  Colleges as well as many employers require one.  The HiSET exam, the new alternative to the GED test, can help you achieve this important state-issued high school equivalency credential.

MO Learns
MOLearns is Missouri's FREE online classroom for students looking for the flexibility of completing most of their high school equivalency test preparation at home. This program is sponsored by the Department of Elementary and Secondary Education (DESE). is a test preparation site for SAT, ACT, and GRE. There are quizzes, facts, and a vocabulary builder.

Test Prep Review is a free service of a nonprofit group of educators. This website was created to provide free practice test questions for students in a variety of career situations. The site contains a modular approach to learning the content on these exams.