This is very art deco meets California Bungalow meets Craftsman style. I can just imagine Clark or Herbert or Pohl writing sweeping, futuristic sci-fi epics at a desk like this. - Paul frankl skyscraper desk and bookcase from com e from website
Art Nouveau Staircase by Victor Horta -Hotel Tassel, Brussels. Typically of this period the interior has elongated, curved and flowing lines. These lines are seen in the tiles, the staircase and also on the walls.