Must-Have Sudoku Logic Puzzles for Around-the-World Travels . Over 200 Puzzles for the Frequent Traveler 12+

📗 When you're traveling, you have hours to yourself. You can opt to view the scenery outside, go to sleep or work on some Sudoku puzzles. Sudoku are challenging number games that make you forget about time. It helps you to master your focus and concentration skills because every time you get distracted, your thought process reboots. Keep a book of Sudoku puzzles with you on your next travel!