UNC-Chapel Hill's library system includes a number of individual libraries housed throughout the campus and holds more than 7.0 million volumes in total.[111] UNC-Chapel Hill's North Carolina Collection (NCC) is the largest and most comprehensive collection of holdings about any single state nationwide.[112] The unparalleled assemblage of literary, visual, and artifactual materials documents four centuries of North Carolina history and culture.[113] The North Carolina Collection is housed in Wilson Library, named after Louis Round Wilson, along with the Southern Historical Collection, the Rare Books Collection, and the Southern Folklife Collection.[114] The university is home to ibiblio, one of the world's largest collections of freely available information including software, music, literature, art, history, science, politics, and cultural studies.[115][116]