Walter Gropius (1883 – 1969) was an architect born in Germany in the early twentieth century who contributed to the founding of the Bauhaus School. He lived in the United States after 1937 and taught at Harvard University, where he continued to defend the principles of Bauhaus, especially the use of functional materials and clean geometric designs.
Hans Poelzig was a German architect and designer, he was born in Berlin. Between 1888-95, studied Technische Hochschule, Berlin Charlottenburg and Technische Hocschule, Berlin, under Karl Schäffer.
Between 1899-1916, he worked in his own office in Breslau (now Wroclaw, Poland) and, 1900-16, taught at the Kunst- und Kunstgewerbeschule (after 1911, called the Akademe für Kunst und Kunstgewerbe) in Breslau, where he was director from 1903
German-born, Tschichold is one of the most outstanding and influential typographers of the 20th century, He cleared away the old typography of pre-1925 and made room for a modern, structured and regulated new typography. His work is characterised by rigorous structure, asymmetrical placement of contrasting elements, and layouts based on horizontal and vertical underlying grids.