John Gartner "The Hypomanic Edge"

Have you ever seen that official-looking plaque you can buy at novelty stores that says, "You don't have to be crazy to work here, but it helps"? Maybe you don't have to be crazy to succeed in America -- but apparently it helps, says John Gartner, a Johns Hopkins clinical psychologist. "Americans may have a lot of crazy ideas," he says, "but some of them lead to brilliant inventions." Gartner's new book is called The Hypomanic Edge.