Large, close targets are faster to hit than small, distant ones, that’s Fitts’s Law. A look at the 1954 rule behind buttons, prime and magic pixels, thumb zones, and dark patterns.
Your working memory holds about four things, not seven. Chunking groups loose information into meaningful units that slip past that limit, the psychology behind phone numbers, scannable pages, multi-step forms, and grouped navigation.
The Call to Action hasn’t changed in a decade, but the bar has. A fresh look at prominence, copy, mobile tap targets, and accessibility, with lessons from three major design systems.
This site is superb. The attention to typography is very tight, also a good collection of quotes and other content