Book excerpt: Original and imaginative crosswords to challenge and mentally stimulate. Puzzles are a fun way to flex mental muscles and keep them in shape. Author is Crossword Editor Emeritus of USA Today Original and imaginative crosswords to challenge and mentally stimulate. What makes these crossword books different from other crossword books is that they are edited in the old-fashioned crossword style. You won't find references to Britany Spears or NYPD Blue in these. You'll need a good knowledge of English, classic literature, geography, Latin, and subjects like that. Uses 12-point type instead of the typical 10-poin, so it's 20 per cent bigger than usual, making it easier to read.