Describir: Timber its structure and properties

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