A fun and simple pocket-size Sudoku puzzle book made for kids, beginners and anyone who wants an easy introduction to Sudoku.This very easy 4x4 Sudoku book uses smaller grids, making the puzzles quicker, clearer and less overwhelming than standard Sudoku. It is a great choice for children, young learners, travel, quiet time, holidays, waiting rooms and simple brain-training practice. Book details: 4 x 6 inch pocket-size book with 60 4x4 Sudoku puzzles, 2 puzzles per page, 60 solutions included 2 solutions per page. Beginner and child-friendly format, Black and white interior, Easy to carry in a bag, pocket or school bag, A simple and friendly first Sudoku book for building confidence, focus and problem-solving skills.