There is no better time to curl up in a comfortable chair and read than in wintertime. And winter has been a powerful muse for many of America's best loved poets. The elegant patterns of frost on a windowpane, a child on a sled, a lone fox foraging for food on a desolate landscape, the comic smile of a snowman, the sobering sight of an unkempt man huddled against the cold, or a pair of red slippers glimpsed in a shop window in a gray, windy sleet...