Jan Tschichold

Jan Tschichold (German pronunciation: [jan ˈtʃɪçɔlt]; born Johannes Tzschichhold;, also known as Iwan Tschichold or Ivan Tschichold, was a German calligrapher, typographer and book designer. He played a significant role in the development of graphic design in the 20th century – first, by developing and promoting principles of typographic modernism, and subsequently idealizing conservative typographic structures.