Laws Of UX

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Laws Of UX

Grasp the top notch User Experience design principles used by experts world wide.

What`s inside

–  Here we have summarized for you the top notch UX Design principles followed by professional UX designers worldwide.


–  Each rules/principles that are mentioned will affect the effectiveness of a design if used correctly.


– Following these set of principles will minimize your users cognitive overload, frustration and decision paralysis .

About the Content

Each topic gives you the overview of what the principle is actually trying to say.

These are rules (principles, guidelines or what ever you wish to say it is) provided by well known design experts.


Amara's Law

We tend to overestimate the effect of a technology in the short run and underestimate the effect in the long run.

Amara's Law

Fitt's Law

The time required to move to a target depends on the distance to it, yet relates inversely to its size.


Gestalt Laws of Perceptual Organization

Law Of Proximity

Things that are near each other seem to be grouped together.

Law of proximity

Gestalt Laws of Perceptual Organization

Law Of Continuity

Points that are connected by straight or curving lines are seen in a way that follows the smoothest path.


Gestalt Laws of Perceptual Organization

Law of Prägnanz

Objects in the environment are seen in a way that makes them appear as simple as possible.

Law of Prägnanz

Gestalt Laws of Perceptual Organization

Law Of Similarity

Similar things tend to appear grouped together.

Law Of Similarity

Gestalt Laws of Perceptual Organization

Law Of Closure

Things are grouped together if they seem to complete some entity.


Gestalt Laws of Perceptual Organization

Law Of Common Region

Elements that are grouped together within the same region of space tend to be grouped together.

Law of Common Region

Hick-Hyman’s Law

Hick's Law

The time it takes to make a decision increases with the number and complexity of choices.

Hick's Law

Hofstadter’s Law

It always takes longer than you expect, even when you take into account Hofstadter’s Law.


Miller's Law

An average person can only keep 7 (+- 2) items in their working memory.

Miller's Law

Doherty's Threshold

Productivity soars when a computer and its users interact at a pace (<400ms) that ensures that neither has to wait on the other.


Jacob’s Law

Users mostly prefer your site to work the same way as all the other sites they already know.

Jacob's Law

Occam's Razor

When presented with competing hypotheses to solve a problem, one should select the solution with the fewest assumptions.

Occam's Razor

80/20 Rule

Pareto Principle

For many events, roughly 80% of the effects come from 20% of the causes.

Pareto Principle

Parkinson's Law

Work expands so as to fill the time available for its completion.


Postel's Law

Be liberal in what you accept, and conservative in what you send.


First & Last

Serial Position Effect

Users have a natural inclination to best remember the first and the last items in a series.

Serial Position Effect

Law of Conservation of Complexity

Tesler's Law

For any system there is a certain amount of complexity which cannot be reduced.

Tesler's Law

The Isolation Effect

Von Restorff Effect

Items that stand out from the rest of their peer are more memorable.

Von Restorff Effect

Zeigarnik Effect

People often tend to remember interrupted tasks better than completed tasks.

Zeigarnik Effect

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Laws Of UX Mindmap