Every serious puzzler has a common foe: puzzle dust, the granular detritus of puzzle pieces that coats your hands with a layer of silty grime. At worst, one might open a fresh puzzle to find it ...

Finding the right gift for a 9-year-old certainly straddles a fine line. Nine-year-olds are growing up—but they also very much remain children. While their tastes and styles are maturing, your ...