Bob Eckstein’s hilarious cartoon for the New Yorker merely scratches the surface of this award-winning illustrator’s obsession with everything snowman. For The Illustrated History of the Snowman (Lyons Press, Sept.), Eckstein, who is also the author of Footnotes from the Greatest Bookstores,chased Frosty around the world and deep into history, diving into museums and libraries to shed light on the snowman’s enigmatic past.