Describir: A practical handbook of geometrical composition and design

 ______      ___      ______    ______   ______     _____    _____    
|      \\   / _ \\   /_   _//  /_   _// |      \\  |  ___|| |  __ \\  
|  --  //  / //\ \\    | ||     -| ||-  |  --  //  | ||__   | |  \ || 
|  --  \\ |  ___  ||  _| ||     _| ||_  |  --  \\  | ||__   | |__/ || 
|______// |_||  |_|| /__//     /_____// |______//  |_____|| |_____//  
`------`  `-`   `-`  `--`      `-----`  `------`   `-----`   -----`   
                                                                      
   ___    
  / _ \\  
 / //\ \\ 
|  ___  ||
|_||  |_||
`-`   `-`