Contributor(s): Professor Joseph S Nye | Leadership is always necessary in any endeavour, applying equally to politics, business, society, and culture. Whilst enriching our understanding of the concept Nye highlights how the changing nature of leadership derives from broader social and political changes. Joseph S. Nye Jr, is University Distinguished Service Professor at Harvard University's Kennedy School of Government, where he was formerly Dean. In government, he served as Chairman of the National Intelligence Council, Assistant Secretary of Defence, and Deputy Undersecretary of State. This event marks the launch of Professor Nye's new book The Powers to Lead (OUP, May 2008).