Tangentially related: there's a guy in Poland running a blog about personal finance (i.e. some advice how to save money on your bills, or how to start investin

Tangentially related: there's a guy in Poland running a blog about personal finance (i.e. some advice how to save money on your bills, or how to start investing in stocks, etc.) Some time ago he self-published a book, promoted it through social media, and of course through his blog. Later he made a blog post about how much money he made on that book. Believe it or not, but in 3.5 years, on the limited Polish market (the book was in Polish, so no more than 40 million people speaking the language worldwide) he grossed $2M in revenue, over $1M after-tax profit for about 90k copies sold. For those of you who speak Polish (or are willing to go with Google Translate) here's the link: https://jakoszczedzacpieniadze.pl/ile-zarobila-ksiazka-finansowy-ninja-podsumowanie-2019 https://jakoszczedzacpieniadze.pl/ile-zarobila-ksiazka-finan... https://translate.google.com/translate?hl=&sl=pl&tl=en&u=https%3A%2F%2Fjakoszczedzacpieniadze.pl%2File-zarobila-ksiazka-finansowy-ninja-podsumowanie-2019 https://translate.google.com/translate?hl=&sl=pl&tl=en&u=htt...