Deco or Moderne — What's the Difference? From industrial objects to household accessories to architecture, the art deco and art moderne styles became all encompassing in the '20s and '30s.This home has all the distinctive elements of art deco style as it transitioned to art moderne. Rigid, rectilinear geometry gives way to soft, flowing curves, while cantilevered, pipe-railed balconies combine with porthole doors to evoke the aura of transatlantic voyages on the great ocean liners of the period. Generous use of luminous and decorative glass block — a classic material of the art deco and art moderne styles — brings abundant light into the interior by day and creates drama at night when the effect is reversed.