When designing a school library space and deciding how to arrange resources, it is important to consider multiple components of adolescent development, including social, emotional, and behavioral aspects. Acknowledging these developmental facets and their importance can provide additional justification for some of the more controversial aspects of modern school library spaces, like gaming tables, lounge seating, and areas devoted to resources related to teen issues. Supporting all areas of adolescent development may provide convincing justification librarians can use in schools where administrators are slow to warm to more enlightened models of a modern school library program.