Koos Looijesteijn

Aurel's Grand Theater

Polychrom | Figma

191 Social Proof Examples

ARIA - a Collection by Manuel Matuzovic on CodePen

Bar | Charts.css

Amaterasu - Empower your mental health journey

OKLCH Color Picker & Converter

Free Online Form Builder | Tally

Big Trek from Big Tech

Bounded rationality

Interoperability between UI design tools

Brutalism is not great for looking relatable

Broken or brutalism: personal websites in 2018

Hey Koos, do you still recommend WordPress?

Things I learned from doing a side project

Why side projects fail

Vue is a great JavaScript framework for designers

What is color?—Color theory in design

How I design ‘mobile first’

New design pattern: Drag To Tag