The Map Library is the University Library's primary location for cartographic materials including maps, atlases, and Illinois aerial photography flown between 1939 and 2005. The collection includes more than 625,000 maps and photographs. Map and atlas coverage includes worldwide materials produced during the nineteenth, twentieth, and twenty-first centuries. Complementary to the cartographic materials, the Map Library is home to texts on cartographic techniques and map interpretation, history of cartography, geographic information science(GIS), global positioning systems (GPS), remote sensing, spatial statistics, and place names. Additionally, the Map Library can assist in obtaining access to geologic mapping housed at the Oak Street Library Facility. The Map Library serves as a resource for the entire campus, the state of Illinois, and national and international users.