It's only logical―boost your brainpower with more than 130 logic puzzles for adults. 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!