John P. Kotter

Leadership & Change Management Guru

Bill Clinton

42nd President of the United States; Founder of the William J. Clinton Foundation

David Miliband

President & Chief Executive Officer of the International Rescue Committee; Former UK Foreign Secretary

Rita McGrath

Expert on Business Strategy in Uncertain Environments; Acclaimed Thinkers50 Thought Leader & Author

Patrick Byrne

Founder & CEO, Overstock.com

Nicholas Burns

Professor of the Practice of Diplomacy & International Politics, Harvard Kennedy School

Moby

Musician, DJ, Photographer

Nicholas Kristof & Sheryl WuDunn

Pulitzer Prize-Winning Journalists for "Half the Sky" & Human Rights Advocates

Danny Glover

Acclaimed Actor, Producer & Leading Social Activist

Ralph Nader

Consumer Advocate, Lawyer & Author; Former Independent Presidential Candidate

Ben Goldacre

Physician; Best-Selling Academic & Science Writer

John Zogby

Trendspotter & Leading Pollster

General Wesley Clark

Retired Four-Star Army General & Former NATO Supreme Allied Commander

Amy Gutmann

United States Ambassador to Germany; Former President of UPenn

James Woolsey

Former Director of the C.I.A.

Alex Steffen

Author of "Carbon Zero: Imagining Cities That Can Save the Planet"

Tara Sophia Mohr

Expert on Women’s Leadership and Well-Being; Author of "Playing Big: Find Your Voice, Your Mission, Your Message"

Shashi Tharoor

Diplomat & Author; Former United Nations Under-Secretary-General

Xavier Sala-i-Martin

Chief Economic Advisor to the World Economic Forum

Robert D. Kaplan

Best-Selling Author & Atlantic Monthly Correspondent

Daniel Silva

New York Times Bestselling Author & Spy Novelist

Bernard Kouchner

Former Minister of Health of France; Founder of Nobel Peace Prize-Winning Médecins Sans Frontières

Jeffrey Garten

Professor, Yale School of Management and Expert on Global Business Strategy

Dr. Linda Yueh

Fellow of Economics & Director of the China Growth Centre at the University of Oxford; Globally-Recognized Authority on Chinese Economy

Mikko Hypponen

Computer Security Expert; Chief Research Officer at WithSecure & Principal Research Advisor at F-Secure

If It's Smart, It's Vulnerable

Spencer Wells

Geneticist, Anthropologist, Author, Entrepreneur, Adjunct professor at the University of Texas at Austin

Dr. Jonathan Foley

World Leading Climate Scientist & Executive Director of Project Drawdown

Robin Wright

Foreign Policy Analyst, Journalist & Author of "Rock the Casbah: Rage and Rebellion across the Islamic World"

Shirin Ebadi

Nobel Peace Prize-Winning Iranian Activist & Lawyer

Mark Kramer

Co-founder of FSG, Author & Co-Creator of Shared Value Concept