Cataloguing of early printed books in the National Union Catalogue (NUKAT)
Since 2008 the National Union Catalogue of Polish academic and research libraries (NUKAT) has been expanding to include descriptions of early printed books. As early as in the 1990s librarians from big Polish libraries began the theoretical work necessary to enter 16th-18th century publications into an automatic catalogue. The present article recounts the preparation of normalisation documents, i.e. the norms for the bibliographic description of pre-1801 publications and the adaptation of the USMARC/MARC21 format for bibliographic records of early printed books. The author analyses the problems associated with full description of individual features of various copies, especially the owners’ marks (provenance), in the MARC21 format. She presents a model of describing early printed books in the NUKAT catalogue, discusses the possibilities of data indexing as well as search keys available to the catalogue users. The author sums up the current state of the catalogue, referring to statistical data (the number of records entered, the general number of early printed books in co-cataloguing libraries within NUKAT). She emphasises the benefits of a joint automatic catalogue which provides information on early printed book collections in Polish libraries.