How to decipher call numbers

What do the parts of a call number mean?

Call numbers are basically divided into two parts:

• subject classification: series of numbers that represent the subject area
• author classification: series of letters and/or numbers that represent the author or title of the information

Some call numbers have a third part for the year of publication or extra author information.

Put your mouse over the call number for Spacetime Physics by Edwin F. Taylor, and John Archibald Wheeler, for a description. The Hargrave-Andrew Library version:

And the Caulfield Library version: