Hi, I'm Radek.
Recent articles
March Challenge: The effects of zero sugar and zero news
March Challenge summary: zero sugar, zero news. How it went, what I learned from it, will I keep doing it?
February Challenge results: The effects of publishing daily for a month
February Challenge summary: Daily publishing. How it went, what I learned from it, will I keep doing it?
January Challenge results: Great effort, great outcome, needs modifying
January Challenge summary: what it was, how it went, what I learned from it, will I keep doing it?
What happens when your article is mentioned in the Morning Brew newsletter?
What happens (and what doesn't happen) when your article is mentioned in the newsletter that goes out to 2m+ people.
How to develop a bias for action
A compilation of research, findings, and my own experience on developing a bias for action.
Recent books
More good stuff
Articles
Tech, growth, books, data science, more.
#TIL
‘Today I Learned’. As random as it gets. But interesting.
Books
50+ books per year can’t go to waste. Short summaries and recommendations.
About
Who am I? And why is the shark velvet?
Consulting
Conversion optimization and growth consulting. It’s how I make my living.
GrowRevenue
One hand picked article per day (Mon - Fri) about conversion optimization and growing revenue.