Science and Technology Section

Located at the second floor of the University Library, it houses books on Pure and Applied Sciences. 

Humanities Section

It houses books on Humanities, Social Sciences, Psychology, Arts, Religion, History, Language and Literature. The section is located at the second floor.

Reference Section

Houses reference materials such as Dictionaries, Bibliographies, Almanacs, Atlases, Maps, Globes, Encyclopedias, Abstracts, Handbooks, Manuals, Yearbooks, Directories and others.

Filipiniana and Thesis Collection Section

Located at the second floor of the University Library, materials found from this section are books on or about the Philippines, those published in the Philippines except reprinted books, and books written by Filipinos on different subjects.  Graduate and undergraduate theses are also kept in this section.

Serials Section

Collection consists of periodicals in the Humanities, Social Sciences, Science and Technology, Magazines, Clippings, and Newspapers. It is located at the first floor of the University Library.

Multi-media Section

It has computers which can be used for internet surfing and encoding. On-line database such as e-books and e-journals can be accessed here. It located at the second floor of the University Library

 Reserve Section

Books requested by faculty members are placed on reserve for required and collateral readings.

Relegation Section

Houses less-used library collection comprise of books, theses, and periodicals. CLSU Publications Corner can also be found in this section. It includes scientific journal, Golden Grain, the Plowman, Newsletter, Annual Reports, Minutes of the Meeting of the Boards of Regents, and others.

Technical Section

The section is responsible for the processing of library materials for easy and efficient retrieval.