Contribute correction: A Slide Show of Eschers

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