If you're a backpacker, you probably need to bring some sense and calm with you. You will be exposed to new cultures and traditions that may seem confusing. It's nice to know that you can process newly acquired information by first digesting them fully. Sudoku has a special way of doing that. You can meditate when you're solving Sudoku. Grab a copy today. | Easy Carry Sudoku Puzzle Pocket Books for Trippers by Senor Senor Sudoku, Paperback | Indigo Chapters