Title: The Big Puzzle Book of Area Mazes: 300 Mind-Bending Math Puzzles in Five Challenge Levels, Author: Naoki Inaba
Title: The Original Area Mazes: 100 Addictive Puzzles to Solve with Simple Math - and Clever Logic!, Author: Naoki Inaba
Title: The Original Area Mazes, Volume Two: 100 More Addictive Puzzles to Solve with Simple Math - and Clever Logic!, Author: Naoki Inaba
Title: Amazing Area Mazes: 70 Race-the-Clock Puzzles for Budding Math Wizards, Author: Naoki Inaba