Ryan Holiday, Growth Hacker Marketing

Growth Hacker Marketing: Although Sean Ellis invented the term, Ryan Holiday was the first to share the phenomenon in the form of a book on Growth Hacking.
In this book, Ryan uses stories to explain how well-known startups exploded.

But also what ideas you can try out in your business if you need to grow it on a limited budget. Although this book was written in 2014, the mindset of Growth Hackers that it describes is as relevant as ever.