About this title: More than 400 brain-jogging puzzles offer a crash course in cryptography, while the messages reward you with the comedy of Jay Leno, Elayne Boosler, and Jerry Seinfeld, as well as the wit and wisdom of Hillary Clinton, Stephen King, and Edna St. Vincent Millay. Solve each one on your own, or follow the tips for faster results. There's also a chart of hints for each puzzle.
Note: This is a general synopsis. Each listing is described below.