---
license: cc0-1.0
language:
- en
pretty_name: NLS Catalogue of Published Collections
size_categories:
- 1M<n<10M
task_categories:
- text-generation
- text-classification
tags:
- catalogue
- metadata
- library
- heritage
---

# Dataset summary

This dataset contains the bibliographic records from the Library’s catalogue of published material: books, maps, music, journals, newspapers, pamphlets, flyers and more, and includes records for printed and digital publications. It excludes records from our catalogue where we believe the originator exerts rights over the re-use of the metadata. 

This version contains over 5 million records which are split into 51 files of approximately 100,000 records each for ease of export.

The data is made available in DCMI Metadata Terms format.  The DC metadata terms are expressed in RDF vocabularies, which can be used in linked data applications, as well as in XML, JSON, and UML environments and relational databases.