Ludwig Hohlwein (1874-1949) produced simple and recognizable poster designs that influenced many graphic artists in his time.
From the perspective of design impact, his work has remarkable graphic power, with organized values and strong silhouettes.
Hohlwein's work was part of a poster tradition known as "Plakatstil" (German for 'poster style') or "Sachplakat."
The posters were characterized by bold, flat colors, and playful lettering, a reaction to the subtlety and complexity of the Art Nouveau style.
Forms are simplified into a finite number of value steps. White shapes spill over into other white shapes, and the modeling of form leaves out any unnecessary detail.
However, during his time, Hohlwein's posters influenced many designers and artists in Germany, including Edmund Edel, Ernst Deutsch-Dryden, Hans Lindenstadt, Julius Klinger, Julius Gipkens, Paul Scheurich, Karl Schulpig and Hans Rudi Erdt, and they were admired by contemporary illustrators in the USA, including Edward Penfield and Coles Phillips.
Ludwig Hohlwein (1874-1949) on Wikipedia
Flickr collection of his posters
Search results on DuckDuckGo
Books: Hohlwein Posters in Full Color
Ludwig Hohlwein, 1874-1949: Kunstgewerbe und Reklamekunst (German Edition)