classification as it stands at the beginning of the 21st century. It emphasizes online catalogues and cataloguing, with all the attendant terminology. The author addresses such vital issues as Internet cataloguing, international access control, metadata, and ontologies. A new chapter, "Encoding", has been added to introduce users to the area of mark-up language that allows data to be read by computer and displayed online. Emphasis in this chapter is on "MARC 21". The chapter on "Description" reflects the major conceptual shift in description of resources with a new organization based on the eight areas of the "International Standard Bibliographic Description" (ISBD) rather than according to the type of material being catalogued. Other changes covered by the work encompass the 1998 revision of the "Anglio-American Cataloguing Rules", second edition (AACR2), the 21st edition of "Dewey Decimal Classification", current schedules of the LC Classifications, the latest "Library of Congress Subject Headings", and the 17th edition of "Sears List of Subject Headings". In addition, the section on adminstrative issues has been completely rewritten, and suggested readings have been updated in all chapters.

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