Describir: Instructions for the use of Lawson perspective charts

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