Joy-Ann Reid

MSNBC Correspondent, Political Author & Host of "The ReidOut"

Medgar and Myrlie: Medgar Evers and the Love Story that Awakened America

Lynsey Addario

American Photojournalist; Contributor for National Geographic & Time Magazine

Nicholas Burns

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

Vandana Shiva

World-Renowned Environmental Leader

Peter Docker

Leadership & "Start With Why" Culture Expert

Martin Seligman

Zellerbach Family Professor of Psychology & Director of the Positive Psychology Center at the University of Pennsylvania

Tomorrowmind: Thriving at Work with Resilience, Creativity, and Connection―Now and in a...

Tal Ben-Shahar

Best-Selling Author & Positive Psychology Expert

Laura Carstensen

Stanford University, Professor of Psychology & Public Policy; Expert on Longevity & Aging

Nick Bilton

New York Times Lead Technology Writer

John Amaechi

Organizational Psychologist, Leadership Transformation Expert & Former NBA Player

Ben Goldacre

Physician; Best-Selling Academic & Science Writer

John Zogby

Trendspotter & Leading Pollster

Graham Hill

Founder of Life Edited & TreeHugger.com

Alec Ross

Author of "The Industries of the Future," and Recent Senior Advisor for Innovation to Hilary Clinton

Jerry Porras

The Lane Professor of Organizational Behavior and Change, Emeritus; Consultant on Organizational Change