Like its cousins Sudoku, Kakuro, and Kenken, Area Mazes are brainteasers that encourage Mathematical thinking and reasoning skills.   According to Amazon, "Just Remember: Area = length × width, Use spatial reasoning to find helpful relationships, Whole numbers are all you need."  See this month's brain teaser for an example. Invented by Japanese puzzle master Naoki Inaba, this pocket sized book can keep your brain sharp and clever.  The Preface  "Brain Training with Area Mazes" explains that area mazes are designed to develop flexible and youthful thinking as these puzzles cannot be solved by repeating a process.