Describir: A manual of engineering drawing :

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