Sean Ellis & Morgan Brown, Growth Engines

This book on Growth Hacking is a collection of real cases that have been used by the biggest startups. Check out these examples like Uber, Snapchat, Yelp, Yelp, Yelp, GitHub, GitHub, Hubspot, Evernote, LinkedIn, and Whatsapp, among others.
The authors put a lot of effort into the specificity and depth of these interviews.