Perfect large print Sudoku Puzzle Book f or kids or adults to help keep their minds sharp. Has a total of 146 pages, including: 100 Puzzles (50 Easy Level Difficulty & 50 Medium Level Difficulty) One Puzzle per 8.5" x 11" page Wide Margins so that pages may be torn out, if desired Notes Section , located at the back of the book, for personal thoughts and puzzle-solving strategies Answers to Puzzles , arranged at the back of the book, with four puzzles per page This 8.5" x 11" Sudoku Puzzle Book has a flexible paperback cover . Perfect gift for anyone, from kids to seniors.