II. Libraries should provide materials and information presenting all points of view on current and historical issues. Materials should not be proscribed or removed because of partisan or doctrinal disapproval. III. Libraries should challenge censorship in the fulfillment of their responsibility to provide information and enlightenment. IV. Libraries should cooperate with all persons and groups concerned with resisting abridgment of free expression and free access to ideas.
Library Bill of Rights
Artwork courtesy of the American Library Association