It was designed by Ludwig Mies van der Rohe (commonly known as Mies), a German modernist architect also active in the United States, a leading representative of the International Style (a current of modernist architecture). Mies is also known for his aphorisms: “Less is more,” and “God is hidden in the details.”
The other architect specializing in interior design was Mies’ longtime collaborator, German designer Lilly Reich.