Describir: Timber its structure and properties

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