Publishers Marketplace is reporting that Jeopardy freak of nature Ken Jennings has sold a book “exploring the world of map nuts and geography obsessives” called Maphead to Scribner (Google cache; LA Observed). No idea when it’ll be out; the publishing industry can take a while. Via MapHist.

Update: Ken Jennings’s blog entry announcing the book proposal and soliciting tips (“I go into this knowing next to nothing about the subculture — or even if there is such a thing as map subculture”). Via Cartophilia.