Library of Congress Classification by Floor
Top floor, starting at the west end, near the photocopier:
| A: General Works | AC | Theses and Dissertations |
| B: Philosophy | B | History of Philosophy |
| Psychology | BC | Logic |
| Religion | BD | Metaphysics |
| BF | Psychology | |
| BH | Aesthetics | |
| BJ | Ethics | |
| BL | Religion | |
| BM | Judaism | |
| BQ | Buddhism | |
| BR | Christianity | |
| BS | Bible and Exegesis | |
| BT | Doctrinal Theology |
Second floor, starting at the west end:
| BV | Practical Theology | |
| BX | Denominations and Sects | |
| C-F: History | C | History - Auxiliary Subjects |
| D | History | |
| E-F | American History | |
| G-L: Social Sciences | G | Geography and Anthropology |
| H | Social Science | |
| J | Political Science | |
| K | Law | |
| KBU | Canon Law | |
| L: Education | L | Education |
Lowest floor:
| M: Music | M | Music |
| N: Fine Arts | N | Fine Arts |
| P: Language and Literature | PA | Latin and Greek |
| PQ | Romance Literatures | |
| PR | English Literature | |
| PS | American Literture | |
| PT | Scandinavian, German and Dutch Literatures | |
| PZ | Older Fiction, Children's Literature | |
| Q-V: Science | Q | Science |
| R | Medicine | |
| S | Agricultural Sciences | |
| T | Technology and Aeronautics | |
| U | Military Science | |
| V | Naval Science | |
| Z: Bibliography | Z | Bibliography |
