Every time users interact with your product, they:
- 🙈 Filter the information
- 🔮 Seek the meaning of it
- ⏰ Act within a given time
- 💾 Store bits of the interaction in their memories
So to improve your user experience, you need to understand the biases & heuristics affecting those four decision-cycle steps.
Below is a list of cognitive biases and design principles (with examples and tips) for each category. Let’s dive right in.
PS: Don't have time to read the whole list? Just get the cheat sheet.
Users filter out a lot of the information that they receive, even when it could be important.




Product & Psychology Resources
If you want to learn more about behavioral psychology and mental models, we highly recommend you take a look at these resources:
Cognitive Biases Cheat sheet
We took the time to summarize each principle in one line.
They are all in a free cheat sheet of cognitive biases principles.
You can download this cheatsheet as a PDF here.
Use it as a user empathy reminder while you build a feature.
We all have a responsibility to build ethically-designed products and services to improve people's lives. Growth.Design's list of cognitive biases and psychological principles is a great reference for any team committed to improving their customers' user experience. Dan & Louis-Xavier's comic book case studies show you how.
Now It’s Your Turn
So which principle are you going to try next?
Are there missing elements we should add to the list?
You can reach us at [email protected], we reply to everyone!