Describir: Frontiers in geographical teaching:

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