My favorite artistic era would have to be modern art, more specifically art aimed at counteracting the destruction and lack of trust in government and society after the first World War. The efforts to combat the dazed and numb feelings broke off into two separate parts, one senseless and almost childish response and another extremely defined and regimented aspect of life.
De Stijl. It consisted of simply straight lines creating boxes, with black, white and primary colors. It was the most simple form of art because it could not be twisted by politics as everything around the artists had at the time. This form of art also inspired architecture like that found in the Schroder house.