Jonah Berger is a Marketing Professor at the Wharton School at the University of Pennsylvania, an internationally bestselling author, and a world-renowned expert on change, influence, word of mouth, natural language processing, consumer behavior, and how products, ideas, and behaviors catch on. He has published over 50 articles in top‐tier academic journals, teaches Wharton’s most popular online course, and popular accounts of his work often appear in places like The New York Times, Wall Street Journal, and Harvard Business Review. Over a million copies of his books, Contagious, Invisible Influence, and The Catalyst: How to Change Anyone’s Mind are in print in over 35 countries around the world. Berger often keynotes major conferences and events like SXSW and Cannes Lions, advises various early stage companies, and consults for organizations like Apple, Google, Nike, Amazon, GE, 3M, and The Gates Foundation.