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. He's a world-renowned expert on social influence, word of mouth, and why products, ideas, and behaviors catch on and has published over 50 papers in top-tier academic journals. He has consulted for a range of Fortune 500 companies, keynoted hundreds of events, and popular accounts of his work often appear in places like The New York Times, The Wall Street Journal, and Harvard Business Review. His research has also been featured in the New York Times Magazine's "Year in Ideas."

Reviews

"Why do some ideas seemingly spread overnight, while others disappear? How can some products become ubiquitous, while others never gain traction? Jonah Berger knows the answers, and, with Contagious, now we do, too."--Charles Duhigg, author of the bestselling The Power of Habit

"Contagious contains arresting -- and counterintuitive -- facts and insights. . . . Most interesting of all are the examples Berger cites of successful and unsuccessful marketing campaigns."--Glenn C. Altschuler "The Boston Globe"

"[Berger] sheds new light on phenomena that may seem familiar, showing with precision why things catch on. . . . As a playbook for marketers, Contagious is a success."--Danielle Sacks "Fast Company"

"Think of it as the practical companion to Malcolm Gladwell's The Tipping Point."--Tasha Eichenseher "Discover"

"If you are seeking a bigger impact, especially with a smaller budget, you need this book. Contagious will show you how to make your product spread like crazy."--Chip Heath, co-author of Made to Stick and Decisive