Jonah Berger is a professor at the Wharton School of the University of Pennsylvania. He is an expert on word of mouth, viral marketing, social influence, and how products, ideas, and behaviors catch on. He has published articles in academic journals, teaches Wharton’s highest rated online course, and accounts of his work often appear in places like The New York Times, Wall Street Journal, and Harvard Business Review. Berger is the author of multiple books including Contagious: Why Things Catch On and Invisible Influence: The Hidden Forces that Shape Behavior.
Jonah Lees (born 1995) is an English teen actor and songwriter, known for his role as Jonah on Matteo Garrone's dark fantasy film Tale of Tales. Lees also appeared as Bluz in the Playhouse Disney's Happy Monster Band. He has an identical twin brother, Christian Lees (also an actor), and a paternal half sister named Shannon, who is a singer and actress based in South Korea.