Sit & Solve (R) No-Sweat Sudoku by Frank Longo
If you want easy sudoku that's also easy to take on-the-go, "Sit & Solve No-Sweat Sudoku" will be right up your alley. Sudoku sensei Frank Longo has crafted 60 gentle logical conundrums, none of which require upper-level solving techniques to conquer. Grab a pencil and give your brain a stretch with "Sit & Solve No-Sweat Sudoku".