About the Author

Jonah Berger is a marketing professor at the Wharton School at the University of Pennsylvania and internationally bestselling author of Contagious, Invisible Influence, and The Catalyst.

Dr. Berger is a world-renowned expert on change, word of mouth, influence, consumer behavior, and how products, ideas, and behaviors catch on. He has published over 50 articles in top-tier academic journals, teaches Wharton's highest rated online course, and popular outlets like The New York Times and Harvard Business Review often cover his work. He's keynoted hundreds of events, and often consults for organizations like Google, Apple, Nike, and the Gates Foundation.