Every item in the library is assigned a number known as a call number from 000-999.
The call number relates to an item's topic.
Books about the same topic start with the same call number.
It's like a street address, as it directs you to the location of the item on the shelf.
Call numbers are found using Library Search.
Write down the whole call number (e.g. 371.30281 COTT 2013) to find the exact item you need.
Watch our Finding a book on the shelf video below for more help with call numbers.