Book excerpt: Give your brain a workout with 84 mind-strengthening crosswords Crossword puzzles are a powerful and entertaining tool for improving cognitive function, offering a variety of mental challenges in one convenient package. Featuring three levels of difficulty, fun themes, and clever clues focused on familiar words, this is the perfect collection of crosswords for anyone interested in giving their brain a workout. What sets this standout among crossword puzzle books for adults apart: Single-page puzzles--Each puzzle is printed on its own page, giving you plenty of space to write and letting you see every clue at a glance. Your choice of difficulty--Puzzles start out simple and get tougher as they go, giving you the opportunity to warm up or jump straight in with a challenge. Brain health pointers--From brain-boosting snacks to beneficial bedtime routines, you'll find even more ways to keep your brain in shape. Keep your mind strong--and enjoy every minute of it--with this top choice in crossword books.