SUDOKU BOOK It's time to give your mental muscles a real workout! Stuffed full of clever and cunning challenges, this collection of logic puzzles for adults is perfect for puzzlers looking to prove (and improve) their skill. Featuring a variety of puzzle types including Sudoku, Masyu, Logic Grids, and Nonograms these easy-to-understand (but tough-to-solve) puzzles will help keep your mind sharp as you remain engaged and entertained for days to come. Brainpower on! We love our puzzles and we know you will too! Get one for yourself, or as a gift! Enjoy!