Building the Product

What are the psychology 'laws' behind good UX?

A starting point

A handful do most of the work: Hick's Law (fewer choices, faster decisions), Fitts's Law (make important targets big and close), and Jakob's Law (users expect your product to work like the ones they already use). Laws of UX collects them in a scannable reference. Don't be original where users expect familiarity.

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📄 Article
Free Beginner

Laws of UX

From lawsofux.com by Jon Yablonski reference site

Why we picked it

A crisp, visual reference of the psychology principles behind good UX, perfect for a founder who wants the 'why' without a design degree. Bookmark it and consult it while you build.

  • Hick's Law, more choices increase decision time; reduce options.
  • Fitts's Law, make important targets large and close.
  • Jakob's Law, users expect your product to work like the ones they already use.
Open lawsofux.com →
📖 Book
Paid Beginner

The Design of Everyday Things

From jnd.org / Basic Books by Don Norman ~350 pages

Why we picked it

The foundational text on human-centered design that every product person should read once. It rewires how you see every product, including your own.

  • Make affordances and signifiers obvious, users shouldn't guess.
  • Give clear, immediate feedback for every action.
  • Design out errors rather than blaming users ('human error' is usually design error).
Open jnd.org →

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