The Information Resource Center, operated by the National Association of Broadcasters, maintains a collection of industrial publications and directories. The center, also known as IRC, serves the members of the National Association of Broadcasters. It provides more than 200 print and online trade magazines and journals. The Information Resource Center also offers reference materials on subjects, such as market and revenue statistics. The center provides information on programming suppliers and industry consultants, as well as organizational profiles and technical papers. The Information Resource Center has access to over 6,800 books and reports on broadcasting history, technology, regulation, economics and management.