Describir: RIBA book of 20th century British housing.

  ______     ___      _____     _____    _    _      ___      _  __     ___    
 /_   _//   / _ \\   / ____||  |  ___|| | \  / ||   / _ \\   | |/ //   / _ \\  
 `-| |,-   | / \ || / //---`'  | ||__   |  \/  ||  / //\ \\  | ' //   | / \ || 
   | ||    | \_/ || \ \\___    | ||__   | .  . || |  ___  || | . \\   | \_/ || 
   |_||     \___//   \_____||  |_____|| |_|\/|_|| |_||  |_|| |_|\_\\   \___//  
   `-`'     `---`     `----`   `-----`  `-`  `-`  `-`   `-`  `-` --`   `---`