We shelve books according to the Library of Congress (LC) Classification system. Each book or item has a unique call number, which is a combination of letters and numbers. Think of call numbers like an address; it describes the location of a book and tells you where to find it on a shelf.
Each call number may contain three, four, or five lines. Read each call number line by line.
Example:
What does each line mean?
Line 1: Defines the general subject [LB = Education Theory and Practice]
Line 2: Classification number - defines a narrower subtopic within the specified class
Line 3: Cutter number - represents the author's name or the title of the work
Line 4: Publication Year
Line 5 (sometimes): Copy number - if there are multiple copies or volumes you may see a fifth line)