Using the smallest practical size for Sudoku puzzle books (4" x 6"), this book is designed to fit perfectly in a pocket or a purse. The book features ONLY 1 puzzle per page with a 13-point font size that is above most book font size for ease of reading. The puzzles in this book are a visual delight that will impress and fascinate travelers , commuters and people on the go . It is one of the largest collections of progressively challenging Sudoku puzzles shaped after real life objects that are an equal feast to the eyes and to the brain . Features: Includes more than 100 puzzles: 21 Easy, 55 Medium, 26 Hard. - Indicates on all puzzles how difficult they are relative to other puzzles. - Each puzzle is on a full page, solving is easy on your eyes. - Suitable for all levels: Perfect for the novice and pro alike - 13-pt puzzle font size for ease of reading: Above most book regular font size. - Includes instructions : Tips and tricks on how to play Sudoku the first time. - Includes solutions : All solutions included in the back of the book. - Includes unique perks : When a player gets stuck on a puzzle, they can either look at the answers, or request and receive a step-by-step solution so they can learn new solving techniques and strategies faster. - Makes a great gift : Designed around artistic patterns, these gorgeous grids will please any Sudoku fans who appreciate an elegant challenge. Enjoy memorable trips with this companion for your brain. Get your copy now.