Barlach, Ernst.  Three Plays.  Trans. Alex Page.  Minneapolis:  University of Minnesota Press, 1964.  832.91 B257t

Barron, Stephanie.  German Expressionist Sculpture. Los Angeles:  Los Angeles County Museum of Art in association with The University of Chicago Press, 1983.  730.943 G373

Carls, Carl Dietrich.  Ernst Barlach.  New York:  Praeger, 1969.  730.943 B257c

Heller, Reinhold.  The Art of Wilhelm Lehmbruck.  Washington, D. C.:  National Gallery of Art, 1972.  709.24 L523hel

Hinz, Renate.  Käthe Kollwitz:  Graphics, Posters, Drawings.  New York:  Pantheon Books, 1982.  709.24 K81hin

Hoff, August.  Wilhelm Lehmbruck.  New York:  Praeger, 1969.  730.943 L523h

Klipstein, August.  The Graphic Work of Käthe Kollwitz:  Complete Illustrated Catalog. Mansfield Center, CT:  M. Martino, 1996.  709.24 K81kli

Kollwitz, Hans.  Diary and Letters of Käthe Kollwitz. Trans.  Richard and Clara Winston.  Evanston, Ill.:  Northwestern Univ. Press, 1988.  B K797k

Prelinger, Elizabeth.  Käthe Kollwitz/Elizabeth Prelinger.  Washington, D. C.:  National Gallery of Art, c. 1992.  709.24 K81pre

Sheldon, Sayre P.  Her War Story:  Twentieth-Century Women Write About War.  Carbondale:  Southern Illnios University Press, 1999.  808.80358 H531

Werner, Alfred.  Ernst Barlach.  New York:  McGraw-Hill, 1966.  709.43 W492e

Zigrosser, Carl.  Prints and Drawings of Käthe Kollwitz.  New York:  Dover Publications, 1969.  Oversize  709.24 K81 zig