The "Fresh Air" book critic investigates the enduring power of The Great Gatsby -- "The Great American Novel we all think we've read, but really haven't." Conceived nearly a century ago by a man who died believing himself a failure, it's now a revered classic and a rite of passage in the reading lives of millions. But how well do we really know The Great Gatsby? As Maureen Corrigan, Gatsby lover extraordinaire, points out, while...