Contagious
Ever wondered why some products, ideas, or videos blow up overnight while others fade into obscurity? In *Contagious*, Jonah Berger breaks down the six core principles driving viral spread—social currency, triggers, emotion, public visibility, practical value, and storytelling—with relatable real-world examples. From Hotmail’s genius email signature hack that grew its user base to 8.5 million in a year, to Subway’s Jared story that turned a regular guy into a brand icon, and Dove’s *Evolution* video that sparked global conversations about beauty standards, Berger demystifies the psychology behind sharing. Packed with actionable insights for marketers, entrepreneurs, and anyone looking to amplify their message, this book gives you the tools to turn ordinary content into something the world can’t stop talking about.