Content and coverage  
The Italian National Bibliography has recorded, since 1958, the country's publishing deposited with the BNCF by local deposit laws. The material is recorded following the chronological order they are received by the Library. Therefore, the BNI bibliographic year coincides with the accession year. The current series includes only material printed or published over the last two years. Materials published before that time are included in issues irregularly published as supplements to the main series.

Two-monthly printed issues(on line and PDF)


All material is catalogued by : Regole italiane  di catalogazione, Nuovo soggettario and the Italian Web Dewey.    The records are produced in Unimarc format.

Bibliographic descriptions are structured following the schema provided by international Standard e Bibliographic Description (ISBD): they are completed with a main heading and tracing in which there are the subject  headings, numbered with Arabic numerals, and other additional entries, numbered with Roman numerals. The DDC notation is found in the bottom left-hand corner.

 In the main heading presentation a conventional punctuation is used to articulate the elements of the heading in an orderly fashion.

The records are arranged by the Dewey Decimal Classification (15th abriged edition).

Below each heading, the bibliographic records are arranged alphabetically, with the instruction that, in this list, the symbols and numbers precede the alphabetical letters. The bibliographic records are numbered in a progressive order. The record number is found at the bottom left-hand corner. The card numbering is continuous, beginning with the first issues and ending with the last ones.

Each BNI issue has five indexes: an alphabetical index of author names (persons and institutions), of titles, of collections, an alphabetical subject index. The entries refer to the record numbers.

Certain classes of material are not included in the BNI, since they are considered as being outside the remit of the National bibliography.
A list of such exclusions follows:
1. Government and other international organizations publications, unless they are published as monographs
2.. Non-official editions of laws and regulations, collective labour agreements etc. without commentaries or for a particular category of user.
3.  Publications of political parties, trade unions, chambers of commerce, cultural and religious associations, and etc., which have not a general interest.
4. Pastoral letters and other official documents sent out by other religious authorities.
5. Minor religious publications.
6. Entertainment literature and second and subsequent issues of love stories.
7. Publications not available through normal book buying channels and available under subscription.
8. Straight reprints of an earlier edition where the publisher and format is unchanged, pre-prints, specimens and similar publications.
9. Gift editions, when they are unaltered reprints of an earlier edition, even if they have a different cover and/or presentation.
10. Nursery, primary, elementary and middle school textbooks. High school textbooks are recorded in a specific series.
11. Biographical writings for occasional events and worship.
12. Almanacs and similar publications.
13. Patents.
14. Off-prints, even if they are part of a collection.
15. Commercial fair and exhibit catalogues,  private gallery catalogues, show programs, and  tourist brochures.
16. Publisher catalogues and antiquarian book trade catalogues, not intended for historical and scientific aims.
17. Advertising and book trade catalogues, if they are not  the only source in a specific field, for example: stamps, coins and other art object catalogues.
18. Printed music, which is described in two specific six-monthly issues.
19. Texts of lectures reserved for internal circulation.
20. Separately published speeches and presentations for particular occasions.
21. Cartographic material.

doc. n. 1040 del 28/10/2010 mod. il 26/05/2016