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Library of Congress Classification System: LC Call Number Examples

East Los Angeles College Libraries use the alphanumeric Library of Congress Classification System for most of its collections.

LCC Samples

LC Call Number Examples

 

This section contains examples of call numbers. Please look carefully at these examples; some of them may require closer inspection than others.

 

The following example contains three call numbers that are are very similar except for one difference.

 

QC
981.8
.G56
G578

QC
981.8
.G56
G578
2002

QC
981.8
.G56
G578
2006

 

You’ll notice that the only difference in these call numbers is the date. Remember that “nothing comes before something.” That is why QC 981.8 .G56 G578 comes before QC 981.8 .G56 G578 2002, etc.

 

Is the next example in the correct order?

 

N
6537
.L522
H454
1988

N
6537
.L54
A2
2000

N
6537
.O39
M48
2001

N
6537
.O39
P48
1991

 

The example is in the correct order. If you thought that it might not be, chances are that is because of the Cutter numbers. The Cutter numbers are easy to confuse as being whole numbers. It is also easy to get "tunnel vision" when reading call numbers and neglect the alpha portion of the Cutter numbers. Here is the example again with the potentially confusing Cutter numbers in bold.

 

N
6537
.L522
H454
1988

N
6537
.L54
A2
2000

N
6537
.O39
M48
2001

N
6537
.O39
P48
1991

 

Remember that Cutter numbers are always read as decimals. Which call number below is out of place?

 

M
1010
.M95
B6
1987

M
1010
.M95
B59
1987

M
1010
.M952
B595
1987

M
1010
.M98
B65

 

Did you find the book that is out of place? Look carefully at the bold Cutter numbers below.

 

M
1010
.M95
B6
1987

M
1010
.M95
B59
1987

M
1010
.M952
B595
1987

M
1010
.M98
B65

 

Because we read Cutter numbers as decimals, these two books need to be switched to look like the following:

 

M
1010
.M95
B59
1987

M
1010
.M95
B6
1987

M
1010
.M952
B595
1987

M
1010
.M98
B65


Cutter numbers can be very tricky....

It is very important to take your time when shelving and to look carefully at every aspect of a call number.

 

Subject Guide

Unjoo Lee's picture
Unjoo Lee
Contact:
East Los Angeles College Library
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Monterey Park, CA 91754
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