21 Leaders for the 21st Century redefines leadership. Trompenaars and Hampden-Turner tap into the wisdom of high-performing leaders from around the globe, from Michael Dell to Acer9s Stan Shih and from Richard Branson to Russian politician and banker, Sergei Kiriyenko. These business giants candidly reveal their personal experiences of business dilemmas. 21 Leaders for the 21st Century uses these important insights into the nature of leadership to show today9s managers how to understand and use the seven dilemmas of leadership.