This article asks the question: How well versed are school librarians on issues related to labeling and rating systems? As school librarians continue to design and implement resource location schemes to assist patrons, they must recognize the difference between using labels to create interest in books or implementing labeling and rating systems that restrict or discourage wide-range reading. Why? Because when these systems are put under a microscope, First Amendment issues that threaten students' intellectual freedom may be exposed. The article offers suggestions to assist the school librarian when issues such as: viewpoint or prejudicial labeling restrictions block access to library materials; in determining whether to use private and/or commercial rating systems; or the use of readability rating labels.