List of Call Number Prefixes used in the Berlin Cosmopolitan School Library
Early Readers
| Section | Designation | Exemplar Call Number |
| Picture Books | E | E .A567 2017 |
| Non-English Picture Books (Prefixed with language abbreviation) | Fre E | Fre E .A567 2017 |
| Early Fiction & Chapter Books | EF | EF .A567 2017 |
Tween/Junior Books
| Section | Designation | Exemplar Call Number |
| Junior Biography | JB | JB .A567 2017 |
| Junior Fiction | JF | JF .A567 2017 |
| Junior Graphic Novels | C | C .A567 2017 |
| Junior Nonfiction | JN | JN 123.4 .A567 2017 |
| Junior Reference | JR 123.4 | JR 123.4 .A567 2017 |
Teen/Young Adult Books
| Section | Designation | Exemplar Call Number |
| Biography | B | B .A567 2017 |
| Fiction | F | F .A567 2017 |
| Graphic Novels | GN | GN .A567 2017 |
| Nonfiction | 123.4 | 123.4 .A567 2017 |
| Reference | R 123.4 | R 123.4 .A567 2017 |