A graduated version of the popular classic, BrainBusters go beyond the word-scramble of Jumble® to challenge the reader's knowledge of such subjects as history, geography, and science. For more than 40 years, millions of newspaper readers have delighted in solving Jumble®, which appears in hundreds of national papers and in these puzzle books that offer hours of challenging wordplay and fun. Each page features a series of mixed-up words coupled with clues, and one letter from each word is used to form the answer to the puzzle.