Frank Longo Book order

A collection of 105 easy to hard sudoku puzzles that will provide a perfect (and perfectly portable) break at any time of the day.

Peaceful Mind Book of Sudoku is a collection of 100 classic Sudoku puzzles.

Easy sudoku are perfect for solving when you have a few minutes on your hands...wherever you may be. Just toss this pocket-size book into your bag or leave it in a convenient location, and you'll be ready for sudoku-solving enjoyment at any moment!

You say you can't get enough sudoku? Challenge accepted! With more than 900 puzzles at all difficulty levels (gradually increasing from easy to medium to hard), this massive collection should be enough sudoku for anyone for a while, anyway.