The instant New York Times bestseller, now available in paperback and featuring a new afterword from the author--the insider's guide to the Facebook/Cambridge Analytica scandal, the inner workings of the tech world, and who really runs Silicon Valley "Incisive.... The most fun business book I have read this year.... Clearly there will be people who hate this book -- which is probably one of the things that makes it such a great read."-- Andrew Ross Sorkin, New York Times Imagine a chimpanzee rampaging through a datacenter powering everything from Google to Facebook. Infrastructure engineers use a software version of this "chaos monkey" to test online services' robustness--their ability to survive random failure and correct mistakes before they actually occur. Tech entrepreneurs are society's chaos monkeys. One of Silicon Valley's most audacious chaos monkeys is Antonio Garc a Mart nez. After stints on Wall Street and as CEO of his own startup, Garc a Mart nez joined Facebook's nascent advertising team. Forced out in the wake of an internal product war over the future of the company's monetization strategy, Garc a Mart nez eventually landed at rival Twitter. In Chaos Monkeys , this gleeful contrarian unravels the chaotic evolution of social media and online marketing and reveals how it is invading our lives and shaping our future.