Intellectual Freedom is “[t]he right under the First Amendment to the U.S. Constitution of any person to read or express views that may be unpopular or offensive to some people, within certain limitations (libel, slander, etc.)” (Reitz, 2010). The other notable legal limit on free speech is obscenity, defined as a work that, taken as a whole, includes offensive sexual content (according to community standards) and lacks serious literary or other merit (Preer, 2008). A few seminal American Library Association (ALA) and Canadian Library Association (CLA) documents define intellectual freedom in libraries. The application of intellectual freedom in libraries has been, and continues to be, a source of tension.