To triumph at their craft, advertising executives must exercise some of the greatest unsung wizardry in contemporary Western life. Many others from countless fields can claim varying levels of creative activity and invention, but novelists, filmmakers, sculptors, painters, playwrights, and musicians have the gifts of time and space to work out their visions. In the ad industry, however, one's entire reputation may rest on a 30- or 40-second pitch, or -- even more overwhelmingly -- a four- or five-word slogan. Get it right, the client will feel satisfied and the public will buy. Fail to pull it off, and careers will be destroyed and reputations soiled, perhaps irrevoc...