The changes brought about by the World Wide Web and the explosion of electronic media have called into question many of the assumptions on which national bibliographies have been founded. The need was growing of a route map to navigate through unchartes territories. After a preparation period of several years, IFLA´s Bibliography Section endorsed this large set of guidelines. They seek to help national bibliographic agencies improve their bibliographic services. Many examples and references are included.

The changes brought about by the World Wide Web and the explosion of electronic media have called into question many of the assumptions on which national bibliographies have been founded. The need was growing of a route map to navigate through unchartes territories. After a preparation period of several years, IFLA´s Bibliography Section endorsed this large set of guidelines. They seek to help national bibliographic agencies improve their bibliographic services. Many examples and references are included.