Contagious: Why Things Catch on

Why do certain products and ideas go viral? Dynamic young Wharton professor Berger draws on his research to explain the six steps that make products or ideas contagious.

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."

"Jonah Berger is as creative and thoughtful as he is spunky and playful. Looking at his research, much like studying a masterpiece in a museum, provides the observer with new insights about life and also makes one aware of the creator's ingenuity and creativity. It is hard to come up with a better example of using social science to illuminate the ordinary and extraordinary in our daily lives."--Dan Ariely, James B. Duke professor of psychology and behavioral economics at Duke University and bestselling author of" Predictably Irrational"
"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"
"Jonah Berger knows more about what makes information 'go viral' than anyone in the world."--Daniel Gilbert, Harvard College Professor of Psychology at Harvard University and author of "Stumbling on Happiness"
"Jonah Berger is the rare sort who has studied the facts, parsed it from the fiction--and performed groundbreaking experiments that have changed the way the experts think. If there's one book you're going to read this year on how ideas spread, it's this one."--Dave Balter, CEO of BzzAgent and Co-founder of the Word of Mouth Marketing Association
"Jonah Berger is as creative and thoughtful as he is spunky and playful. Looking at his research, much like studying a masterpiece in a museum, provides the observer with new insights about life and also makes one aware of the creator's ingenuity and creativity. It is hard to come up with a better example of using social science to illuminate the ordinary and extraordinary in our daily lives."--Dan Ariely, James B. Duke professor of psychology and behavioral economics at Duke University and bestselling author of" Predictably Irrational"