Mapping the Stacks (MTS) is a collaboration between University of Chicago faculty and Ph.D. students, professional archivists and librarians, primarily from the University of Chicago Library's Special Collections Research Center, and archives, libraries, and community-based organizations in the Chicago area that hold rich, but unprocessed collections related to African-American history. Founded by Professor Jacqueline Goldsby of the University of Chicago's Department of English in 2003, Mapping the Stacks provides the people power to process African American primary source records, including visual materials, periodicals, papers, recorded oral histories, and ephemera according to established archival standards. About 30 completed finding aids are currently accessible on the website, along with a primer on what finding aids are and how they can be used, and a short glossary of archival terms. While production of an archival finding aid for a collection does not digitize all the artifacts in that collection, finding aids contain descriptions of both the materials in the collection and the people and organizations who created the records. Finding aids also indicate the extent of a collection - how much material there is. This means that the work that MTS has chosen to do, get more finding aids online, helps researchers discover hidden collections that document Black Chicago's history.