De-risk product development
Don’t go implement something nobody wants
Validation patterns is a collection of 60 of the most common lean product experiments regularly used by product profesionals at companies like Spotify, Booking.com, Facebook, Amazon, and Google and recommended by top universities like Havard, MIT, and Stanford.
They are all safe-to-fail experiment that will help you validate your riskiest assumptions – so you can start focusing on building the right thing, from the start.
Trusted by leading
product designers at
The power of physical
Our cards are designed to let its physical qualities reflect the weight of its content. Our cards are heavy. They are intentionally big in your hand. They are smooth to touch and easy on your eyes.
Move forward with clarity and confidence
Build a vocabulary based in de facto standards for building digital products. Stop winging it and bring hard facts about what works and what users love.
Buy now