How To Read A Library Of Congress Call Number

Sample Call Number:

HV

3176

.D55

2004

LC Call numbers consist of several parts:

• The first line: “HV” defines the class and subclass.
• These letters specify a broad subject area.
• Within the class of “H” for SOCIAL SCIENCES, Subclass “HV” represents Social Pathology (Social & Public Welfare).
• The second line: “3176″ is the classification number.
• The third line: “D55″ is called a “Cutter Number”
• Letter number combination indicates author or further subject subdivision or geographic area.
• The fourth line: “2004″ is the year of publication.
  Not all call numbers include publication year but most recent books will.