Grumpy Old Geeks Media Growth Hacker Marketing Media Growth Hacker Marketing 2 mentions in 1 episode A book by Ryan Holiday that Jason discusses after returning to regular reading. Mentions 337: Semper Malevolum Apr 18, 2019 41:51 My first book was Growth Hacker Marketing, a primer on the future of PR, marketing and advertising by Ryan Holiday. 42:48 The book is mostly about ... the mindset behind it.