Have you ever wondered how you could change someone’s mind  or make something go viral? Jonah Berger shares what works to change people’s minds – even under almost impossible conditions – and how to make things “catch on.” Jonah Berger is a professor at the Wharton School of the University of Pennsylvania and an internationally bestselling author. He is a world-renowned expert on change and on word of mouth, social influence, viral marketing, and how products, ideas, and behaviors catch on. He has taught tens of thousands of students and executives, and advised hundreds of companies including Apple, Google and Nike.He is the author of The Catalyst: How to Change Anyone’s Mind and Contagious: Why Things Catch On