James Clear is an expert on habits and decision making. He made his name as the author of one of the fastest-growing email newsletters in history, which grew from zero to 100,000 subscribers in under two years.

Today, his newsletter has over 400,000 subscribers, and his articles at jamesclear.com receive 10 million hits each year. His work frequently appears in publications including the New York Times, Forbes and Business Insider.

Daniel Goleman is the author of the international bestsellers Emotional Intelligence, Working with Emotional Intelligence, and Social Intelligence, and the co-author of the acclaimed business bestseller Primal Leadership.

His latest books are What Makes a Leader: Why Emotional Intelligence Matters and The Triple Focus: A New Approach to Education. He was a science reporter for the New York Times, was twice nominated for the Pulitzer Prize, and received the American Psychological Association's Lifetime Achievement Award for his media writing. He lives in Massachusetts.

Heidi Grant, PhD, is a social psychologist who researches, writes, and speaks about the science of motivation.

She is Senior Scientist for the NeuroLeadership Institute and serves as Associate Director of Columbia's Motivation Science Center. She received her doctorate in social psychology from Columbia University.