Michigan State University Libraries (MSU Libraries) comprise the 29th largest academic library system in North America with over 4.9 million volumes and 6.7 million microforms. A unit of Michigan State University in East Lansing, Michigan, United States, the library system comprises nine branch locations including the main library. The Africana Collection is one of the largest of its kind in the nation with a collection of over 200,000 items. Other significant collections include the G. Robert Vincent Voice Library, the largest academic voice library in the nation, containing a collection of over 40,000 hours of spoken word recordings and includes the voices of over 100,000 persons from all walks of life, and the Russel B. Nye Popular Culture Collections which includes the extensive Comic Art Collection.