How to read LC Call Numbers

Read Library of Congress call numbers line by line.

NA
3485
.B76
1982

NA
Read the first line in alphabetical order:
A, B, BF, C, D… L, LA, LB, LC, M, ML, N, NA ..

3479
Read the second line as a whole number:
1, 2, 3, 45, 100, 101, 1000, 2000, 3000, 3400, 3485 …

.M19
The third line is a combination of a letter and numbers. Read the letter alphabetically. Read the number as a decimal, eg:
.C65 = .65 .C724 = .724

Some call numbers have more than one combination letter-number line.

1991
The last line is the year the book was published. Read in chronological order:
1985, 1991, 1992…

Example: