Since 1838 the University of Michigan Library has been serving the research needs of students, faculty and the public. Over its many years of operation the library system has acquired an enormous wealth of diverse resources. Unable to contain these resources in one location the University of Michigan Library is physically spread over more than 12 buildings housing more than 20 libraries. You may access a specific UM Library using the list below. In addition to the main library system on campus, there are a variety of departmental libraries and resource centers located across the U-M Ann Arbor campus designed to serve specialized needs. Materials in these collections are usually accessible to the entire campus community, but often cannot be checked out and are available during more limited hours.