General books are classified according to the Library of Congress Classification (LCC) system. This system categorizes books based on their subject matter, using a combination of Latin letters and Arabic numerals to represent 20 main subject categories, which include
| A Generals Work | B Philosophy, Psychology, Religion | C History : Auxiliary Sciences |
| D History : World | E-F History : America | G Geography, Anthropology, Recreation |
| H Social Sciences | J Political Science | K* Law |
| L Education | M Music | N Fine Arts |
| P Language and Literature | Q Science | S Agriculture |
| T | U Military Science | V Naval Science |
| Z Bibliography and Library Science |
Note – K* is available at the English Law Collection on the 5th Floor.
