Catalogue data is made up of items and titles. A title record describes an item of work, and has fields like Title, Author, and ISBN. See below for an example.
The voyage of the Dawn Treader
Lewis, C. S.
An item is an instance of a title, such as a particular copy of a book. It will have associated data such as number of issues, library held at, and price. It can be matched to the relevant title record through a unique identifier (catalogue key).
Our extracts will include all titles available in our public libraries, as long as we hold at least one publicly available copy of that title. It will also include exports of all publicly available items.