A call number is an alpha-numeric code that tells you where a book is located on the shelf. Each book has its own unique call number which is attached on or near the book's spine. A book's call number also appears in the library's online catalogue entry. Books are sorted alphabetically first, then numerically.

Signs with the call numbers by floor are posted beside the elevators at Dan Porter library and on the stacks in both Davis and Dana Porter libraries.

Should you experience any difficulty in navigating the stacks, you can ask for assistance from the staff at the Library Help Desk.