Jonah Berger is a professor of marketing at the Wharton School of the University of Pennsylvania. He is a New York Times bestselling author and a leading expert on social influence, word of mouth, and how products, ideas, and behaviors catch on. He has been featured in The New York Times, The Wall Street Journal, The Economist, and on NPR, BBC, and CBS. Berger has consulted for a variety of organizations, including Google, Microsoft, and the Gates Foundation. He has also been recognized as one of the world’s 40 most influential business professors by Poets & Quants. Berger’s research has been published in top-tier academic journals and has been featured in popular outlets such as The New York Times, The Wall Street Journal, and The Economist.