In the late 1960s, the stock market was dominated by fast-talking, fast-trading young whizzes. The former money manager George J.W. Goodman, who wrote under the pen name “Adam Smith,” christened them “gunslingers.” In this marvelously entertaining book, Goodman skewers the pretensions, guesswork and sheer hogwash of professional money management. Reading his mockery can help sharpen your own skepticism toward the next great new investing idea — which almost certainly will turn out to be neither great nor new.