Contagious

Berger, Jonah. Contagious: Why Things Catch On.  Simon and Schuster, 2013.

From GoodReads: "Contagious combines groundbreaking research with powerful stories. Learn how a luxury steakhouse found popularity through the lowly cheese-steak, why anti-drug commercials might have actually increased drug use, and why more than 200 million consumers shared a video about one of the seemingly most boring products there is: a blender. If you’ve wondered why certain stories get shared, e-mails get forwarded, or videos go viral, Contagious explains why, and shows how to leverage these concepts to craft contagious content. This book provides a set of specific, actionable techniques for helping information spread—for designing messages, advertisements, and information that people will share."

This book delves into the theories behind why certain things go viral, from products to YouTube videos to internet memes involving grumpy cats. It's a great look at what makes things interesting and popular.