Provides an introduction to MARC21, including quizzes, tables, and examples, to explain the shared language of tags, subfields, indicators, and codes.

Library patrons, bibliographic information, and the library catalog -- The rules for bibliographic information and the standards for MARC -- MARC21 records : what are they, why do we need them, and how do we get them? -- MARC21 and the computerized catalogs of today -- MARC21 terminology -- MARC21, who needs to know what -- Indexed fields : headings -- Display fields : bibliographic description -- Coded fields -- Number fields -- Summary -- MARC21 sample records.