Erich Mendelsohn ; 21 March 1887 – 15 September 1953) was a German-British architect, known for his expressionist architecture in the 1920s, as well as for developing a dynamic functionalism in his projects for department stores and cinemas. Mendelsohn was a pioneer of the Art Deco and Streamline Moderne architecture, notably with his 1921 Mossehaus design.

Expressionist architecture was an architectural movement in Europe during the first decades of the 20th century in parallel with the expressionist visual and performing arts that especially developed and dominated in Germany. Brick Expressionism is a special variant of this movement in western and northern Germany, as well as in the Netherlands.