A library technician is a library and information professional in charge of the day-to-day functions of a library and assisting libraries in the acquisition, preparation, and organization of information. They also assist patrons in finding information. The widespread use of computerized information storage and retrieval systems has resulted in library technicians assisting in the handling of technical services (such as cataloguing). Especially in small libraries, a library technician may be the only person (or one a few) staffing the library. In larger libraries, they may help run certain departments and supervise library clerks, aides, and volunteers. Because libraries are increasingly using new technologies (such as automated databases, CD-ROM, the Internet, and virtual libraries), the role of the library technician is expanding and evolving accordingly.