Contagious (Jonah Berger)

"Contagious" by Jonah Berger explores why certain ideas, products, or messages become popular and spread widely. Berger identifies key factors—such as social influence, emotional impact, practical value, stories, and triggers—that make information more shareable. The book emphasizes that people share things not just for personal gain but to connect with others, leverage social proof, or react to emotions. By understanding these principles, individuals and businesses can craft content that naturally encourages word-of-mouth sharing, increasing its reach organically. The goal is to create messages that are memorable, relevant, and likely to be talked about in everyday conversations.