He was a well-known illustrator whose work appeared in numerous newspapers and periodicals. His fine art was displayed in gallery exhibitions alongside Vuillard, Matisse and Toulouse-Lautrec. Early works were noted for their satiric characterizations of the foibles of French society. His points were made with simple caricature. His illustrations relied on blotches of pure black with minimum outline to define his animated marionettes. His exhibition pieces were carried by large splashes of color and those same fine lines of black. Hermann-Paul worked in Ripolin enamel paint, watercolors, woodcuts, lithographs, drypoint engraving, oils, and ink. Recent efforts to catalog the work of Hermann-Paul reveal an artist of considerable scope.