Penn State Libraries throughout the Commonwealth Approximately half of the students who consult this publication will have used one of the University Libraries before coming to University Park, because the University Libraries includes those at the seventeen campuses of the Commonwealth Educational System (CES), Penn State-Behrend, Penn State Harrisburg, and Penn State Great Valley. Students at all locations can receive benefits from this extensive library system. Materials at any location may be requested by any other location through intercampus loan, thereby expanding the number of items available to almost seven million. A student may use any of the libraries and, upon showing proper identification, should be able to borrow library materials. You need not interrupt your studies during a semester or holiday break if your home is near one of the libraries in this statewide system, for you are welcome at any Penn State library. If you plan to use the resources of one of these libraries, please telephone in advance to verify that it will be open. .