Describir: The social dimension of the conservation of historic centres :

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