The Hart Collection includes samples of books and materials relating to the printing of books by the Leo Hart Printing Company and its successors. The material includes advertisements, information concerning the graphic arts, business papers, items relating to the development and activities of the Hart Company and its personnel, and personal papers of the Leo Hart family. Also included are some papers of Horace Hart, the elder son of Leo, from his years of service in the Printing and Publishing Industries Division of the U. S. Department of Commerce in Washington, D.C