Book excerpt: It's time to dust off your thinking caps, puzzle fans, because presented here are more than 500 of the most challenging, yet fun, Jumble Brainbusters ever. The Very Best of Jumble Brainbusters do more than just test your word power; they also challenge your expertise on a variety of topics, including science, geography, history, pop culture, and more. Give your wits a workout with these fully illustrated puzzles, and find out if your brain is up to The Very Best of Jumble Brainbusters challenge. Win or lose, you will come out ahead by enhancing your word power and building your knowledge on a variety of subjects.