Some colleges and universities choose to have decentralized libraries. There is one main library where acquisitions and cataloguing are completed. The main library houses a complete catalogue of all materials belonging to the library, no matter where the resources are stored. General interest and reference books are retained in the main library, and more specialized resources on specific subjects are housed near the department teaching that subject. The circulation function can be handled in the small departmental library. An example of this type of organization is a university that keeps a departmental library in its school of education.