Describir: Space in medieval painting and the forerunners of perspective

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