1. Acquisition: This unit is concerned with selecting and acquiring various information sources, whether by purchase, donation or exchange, in a manner that suits the needs of library beneficiaries.
2. Cataloging and Classification: – This unit describes information sources in an accurate technical manner, using internationally recognized cataloging and classification systems, such as the Dewey Decimal System.
3. Exchange and Donation: – This unit coordinates the exchange and donation of books and documents with other libraries, with the aim of enriching library collections and exchanging experiences.
4. Catalog Maintenance: – This unit maintains the accuracy of the catalogs and updates them periodically, to ensure easy access to information.
5. Binding: – This unit is concerned with maintaining books and documents, and rebinding them when necessary, to preserve them and ensure their continuity.