Some people see the school library as merely a place for books and materials, but for many students, it is a refuge and a place where they can relax and feel safe. School libraries are more than receptacles of books, technology, and audiovisual needs; they are sanctuaries for many students dealing with issues outside of school. Whether it is addressing students' academic needs or their social-emotional problems, school librarians and staff provide an engaging and comfortable place for young people. That's why it's important school librarians be trauma sensitive and trauma informed; school librarians need to understand how trauma affects the brain so that they can help students suffering from these issues. To be defined as a trauma-informed and -sensitive environment a school or library must commit to supporting every student. This article examines how to assess and implement a Trauma-Informed School Library.