Read Library of Congress call numbers in parts. Let’s use this as an example: LB2395 .C65 1991
LB
Read the first letter/letters in alphabetical order:
A, B, BF, C, D... L, LA, LB, LC, M, ML
2395
Read the first set of numbers that follow the letter(s) as a whole number:
1, 2, 3, 45, 100, 101, 1000, 2000, 2430...
.C65
The third part is a combination of a letter and numbers. Read the letter alphabetically. Read the number as a decimal:
.C65 = .65 .C724 = .724
1991
The last part is the year the book was published. Read in chronological order:
1985, 1991, 1992...
Here's how to find a book in the library stacks by call number. If you have trouble, get help at the Library Service Desk on level two.