King, Lynda J. Best-Sellers by Design: Vicki Baum and the House of Ullstein. Detroit: Wayne State University Press, 1988. King explains why Baum was such an exceptional literary phenomenon in the Berlin of the 1920’s and 1930’s. Includes rare black-and-white photographs of Baum.
Kunitz, Stanley J., and Howard Haycraft, eds. Twentieth Century Authors: A Biographical Dictionary of Modern Literature. New York: H. W. Wilson, 1942. Includes references to Baum’s novels.
The New York Times, August 30, 1960. This obituary offers some evaluation of Baum’s work.
Warfel, Harry R. American Novelists of Today. New York: American Book Company, 1951. Includes a good brief sketch of Baum.