States) by a host of different programs such as a cataloguing in publication service. By this service, the Library of Congress gives a complete catalogue entry of a book to any publisher who sends a final draft or some form of galley proof of a book currently in production. Other national libraries offer similar services or enforce mandatory practices similar to this. The second part of the goal is achieved by thorough acquisition programs and collection development policies which target book markets in other nations, and which foster international agreements with other countries with national libraries who have national bibliographic control as one of their goals. Exchange and access protocols are defined permitting these countries to read each other's catalogues, and to standardize catalogue entries, thus making it easier for each national library to become aware of every possible published document which might concern their country. International bibliographic control Another one of the main goals of many a national library is the "export aspect" and the collaborative sides of the universal bibliographic control of all the books in the world. This is done by the exchanges and accords mentioned in the previous section, and also by fostering the creation of standard conceptual tools such as library classification systems and cataloguing rules. The most commonly used of these tools is the International Standard Bibliographic Description or ISBD, which has served as a basis for national and international cataloguing codes, such as AACR2. See also List of national and state libraries Library assessment References Further reading External links National Libraries Section of the International Federation of Library Associations and Institutions (IFLA) Conference of Directors of National Libraries (CDNL) Conference of European National Librarians (CENL) Types of library Government buildings