For a young internet company, rapid growth isn't a whim, but a matter of survival. If it doesn't show significant results in the first few months, investors lose interest and withdraw funding. While a traditional marketer is researching the market and developing a strategy, the company may run out of money, and no one will give it new funding because it hasn't been growing. Therefore, startups need growth hackers—people focused on quick results and willing to achieve them by any means necessary. In his book, growth process management consultant Denis Martyntsev explains the essence of growth hacking, how to cultivate growth hackers in your company, and how to build a growth team. Denis cites numerous case studies, including those of Russian companies, where simple actions, requiring little effort and expense, led to significant growth in digital business performance, and he offers advice on how to replicate such success in your own project.