Call numbers give the "shelf address" of a book or other library item. They are assigned by subject or in the case of fiction, by the nationality and decade of the author. Call numbers are usually located on the spine or the front cover. For example:
Bullying Prevention and Intervention, by Susan Swearer:
What do these letters and numbers mean?
- LB- the subject area where the book is located
- LB is located alphabetically between LA and LC.
- L is education
- LB is K-12 education
- 3013.32 is read as a whole number, and is located between 3013.31 and 3012.33. 3013.32 is bullying.
- .S94- additional information about the book, sometimes more than one line; it usually represents the author's last name or the first word of the title.
- .S is located alphabetically between .R and .T
- A dot or period is located at the beginning of this number set
- .94 is read as a decimal number, and is located between .S93 and .S95
- 2009- year of publication
Therefore, this call number would appear in progression as:
LB LB LB
3013.32 3013.32 3013.32
.P39 .S94 .T88
2004 2009 2008