Required reading at Harvard Business School and Columbia Business School. Everyone wants to be more appealing and effective, but few believe we can manage the personal magnetism of a Bill Clinton or an Oprah Winfrey. John Neffinger and Matthew Kohut trace the path to influence through a balance of strength (the root of respect) and warmth (the root of affection). Each seems simple, but only a few of us figure out the tricky task of projecting both at once. Drawing on cutting-edge social science research as well as their own work with Fortune 500 executives, members of Congress, TED speakers, and Nobel Prize winners, Neffinger and