Overview
MARC 21 Format for Bibliographic Data
MARC 21 Format for Bibliographic Data is the most famous MARC 21 format and the most used of the five formats. It is created to hold bibliographic information and describe the intellectual and physical characteristics of all types of resources. Such bibliographic information includes titles, names, dates, publication data, physical description and notes.
The MARC 21 Format for Bibliographic Data defines the codes and conventions (tags, indicators, subfield codes, and coded values that identify the data elements in MARC bibliographic records.