Stashed in: 106 Miles, Minecraft
Not sure if he's referring to growth hacking or startups in general.
Lessons Learned from Bill Gross' 35 IPOs/Exits and 40 Failures
Think Like an Entrepreneur - Creative Line Of Thinking Illustrated
Strategyzer & Kauffman: From Idea to Business
Pinterest Growth Hacks: How did it grow so fast? « Adam Breckler