The surviving editorial, production, and publicity files of Greenberg: Publisher. The Greenberg: Publisher library includes 462 titles published by the firm. Also, personal papers of Jacob Walter Greenberg consisting of letters, manuscripts, photographs, clippings, printed ephemera, and memorabilia. These are biographical in nature relating to Greenberg, his family, friends, business associates, authors, politicians, and other public figures. Among the letters are one each from public figures including Robert Benchley, Bennett Cerf, Fiorello La Guardia, and Eleanor Roosevelt.