MARC and MARC21

This topic focuses on MARC (Machine-Readable Cataloguing) and MARC 21, two important developments in Library and Information Science. MARC provides a standardized format for representing bibliographic information in a computer-readable form, making it easier for libraries to store, organize and exchange catalogue records. The project discusses the origin, meaning, characteristics and objectives of MARC, along with the development of MARC 21 through the harmonization of USMARC and CAN/MARC. It also explains the different types of MARC 21 formats, record structure, field tags, indicators and subfields. Furthermore, it highlights their applications, advantages and importance in library automation, bibliographic control and information retrieval. Overall, the study shows how MARC and MARC 21 have improved the management and exchange of information in modern libraries.