Describir: Frontiers in geographical teaching:

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