This collection contains correspondence, book catalogs, and research materials of Frederick Ungar, especially those relating to the Frederick Ungar Publishing Company.
The collection consists of correspondence, photographs, and manuscripts which reflect Irina Aleksander's association with a number of literary notables such as Anaïs Nin, Miroslav Krlea, Marijan and Zora Matkovi, Lon Pierre-Quint, Claude Aveline, and Evgenii Zamiatin.