根據國際圖書館協會(The International Federation of Library Associations and Institutions, IFLA)，圖書館應該要是屬於資訊自由，於是有以下幾條原則：
Libraries provide access to information, ideas and works of imagination. They serve as gateways to knowledge, thought and culture.
Libraries provide essential support for lifelong learning, independent decision-making and cultural development for both individuals and groups.
Libraries contribute to the development and maintenance of intellectual freedom and help to safeguard basic democratic values and universal civil rights.
Libraries have a responsibility both to guarantee and to facilitate access to expressions of knowledge and intellectual activity. To this end, libraries shall acquire, preserve and make available the widest variety of materials, reflecting the plurality and diversity of society.
Libraries shall ensure that the selection and availability of library materials and services is governed by professional considerations and not by political, moral and religious views.
Libraries shall acquire, organize and disseminate freely and oppose any form of censorship.
Libraries shall make materials facilities and services equally accessible to all users. There shall be no discrimination due to race, creed, gender, age or for any other reason.
Library users shall have the right to personal privacy and anonymity. Librarians and other library staff shall not disclose the identity of users or the materials they use to a third party.
Libraries funded from public sources and to which the public have access shall uphold the principles of intellectual freedom.
Librarians and other employees in such libraries have a duty to uphold those principles.
Librarians and other professional libraries staff shall fulfil their responsibilities both to their employer and to their users. In cases of conflict between those responsibilities, the duty towards the user shall take precedence.
老師翻譯講義：https://sites.google.com/site/maolins/teaching/ul/intellectualfreedom
