Answered By: Digital Library Services Team
Last Updated: Dec 11, 2017     Views: 549

The information on the Library catalogue that tells you about the books we own usually includes a shelfmark (also known as a class number) which shows where an item is kept on the Library shelves.

We put a shelfmark sticker on the spine of every book. 


To find a book with the shelfmark 370.152/COT

  • Check the signs in the Library to find out where the books with shelfmark numbers 300-399 are kept.
  • Go to the floor/area you need.
  • Check the signs on the end of each row of shelves, they tell you the range of shelfmarks kept on each row.

The shelfmark number

  • The books are in straight numerical order, eg:
    • 370
    • 370.001
    • 370.01
    • 370.1
    • 370.15
    • 370.151
    • 370.152
    • 371.01
    • 371.9

The shelfmark letters (or filing suffix)

If there are several books with the same shelfmark, then within each number eg 370.152, they are arranged alphabetically according to the filing suffix, in this case the letters COT.

The filing suffix is usually the first three letters of the author's surname, but in some cases (eg where there are several authors) this may vary, so always make a note of the letters as well as the number when noting down the information from the catalogue.