Word of Mouth

Contagious: Why Things Catch On – Book Interview

Contagious book cover

New York Times bestseller and named Best Marketing Book of 2014 by the American Marketing Association

What makes things popular? Why do people talk about certain products and ideas more than others? Why are some stories and rumors more infectious? And what makes online content go viral?

If you said advertising, think again. People don’t listen to advertisements, they listen to their peers. But why do people talk about certain products and ideas more than others? Why are some stories and rumors more infectious? And what makes online content go viral?

Wharton marketing professor Jonah Berger has spent the last decade answering these questions. Read Heidi Cohen’s interview.

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