The Sts. Leo-Seton Catholic School Multimedia Library is the heartbeat of the school. All students have regular and frequent access to all that it has to offer. The SLS Library is home to over 10,000 books and media resources that are available for student checkout.

The library is completely automated. Students and teachers have access to the electronic card catalog from any computer with internet access. Grades Pre-K through 5th attend weekly classes to learn library skills. Junior High students run on a flexible schedule as needed. In addition, students in grades 2-8 may visit the library before school, after school, and most recesses.

Computers are accessible to students for web-based Accelerated Reader programs and research. The library is also home to Title 1 resource library and the SLS Ipad lab.