Everyone knows it's important to exercise your body if you want to stay healthy. But what about the mind? If you don't use it, you'll lose it. And what better way to keep sharp than by stretching your noodle with crosswords? The problem with modern crosswords, though, is that you have to know a lot of esoteric information to solve them. Who can remember who sang what song in the 1970s, who the Cubs' second baseman was in 1985, or who was the Best Supporting Actress of 1991? By contrast, these puzzles, originally printed in the 1960s, emphasize vocabulary and classical knowledge, not trivia and minutiae. Perfect for older puzzle fans.