THE SIX LAWS OF PSYCHOLOGY FOR GOOD UX DESIGN

Summary from the TLDR Design newsletter

Six cognitive-psychology principles—covering decision time, target size, familiar patterns, contrast, memorable endings, and visual polish—shape whether users complete tasks smoothly. Applying laws like Hick's, Fitts', Jakob's, the Von Restorff effect, the Peak-End rule, and the Aesthetic-Usability effect reduces support tickets, speeds task completion, and boosts conversions. Designers should map interfaces against each law, test early with prototypes, and re-test after changes to confirm improvements.