When you hear “whiteboard,” the first thing that probably comes to mind is a classic brainstorming session filled with sticky notes, doodles, and scattered ideas.

The Müller-Lyer illusion, pictured below, makes you think that, of two lines, one is longer than the other when in fact they are of the same length. It appears in virtually every introductory book on graphic de­sign and, of course, in books on per­ception and psy­cho­lo­gy. You might not have known it by name, but you must have seen it before:

34 lessons, Good design is imagination and inspiration, Creating design specs for development, Purposeful vs aesthetic naming, and more.

After 6 months of hard work, we’re launching Flowbite Design System v3.0! – fully integrated native tokens and variables – refreshed all UI components with modern 2025 design – massively improved performance and memory usage – improved usage documentation and more.

Learn how to create an infinite marquee that follows a custom SVG path using React and Motion.

Designing user interfaces is no easy task. With countless choices around layout, spacing, typography, and colour, it’s easy to feel overwhelmed. And when you layer in considerations like usability, accessibility, and human psychology, the challenge only grows.

If your role is linked with an area of business that impacts ROI, you can probably quite clearly tell in what way and by how much your design improves the company’s revenue.

This post shows the full process – start to finish – by actually designing a tiny app while we go. No designer in the loop, just vibes, taste, and a few rounds with an LLM.

As much as we don’t like forms (I personally like designing them, but filling them out is still a less than desirable experience) they are one of administrative adhesives that holds an organisation together.

Are you trying to make your website more inclusive for users with visual impairments? Want practical, easy-to-implement tips to improve accessibility and usability for everyone?