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Jakob Nielsen

Jakob Nielsen

@jakob-nielsen · 21 positions · On ppll ↗

Usability pioneer; co-founder of Nielsen Norman Group and founder of UX Tigers; author of the ten usability heuristics and of Jakob's Law.

Jakob Nielsen did not write this page.

We collected these quotes from things they published elsewhere, and every quote links to where it was said. They have no account here and have not endorsed this site. Quotes are word for word; the short line under each one is our own restatement, not their wording. Their own site. Is this you? Claim it or ask us to remove it. Or tell us what is wrong here.

10 of Jakob Nielsen's claims fit 8 mental models. Most often: Conventions (Jakob's law), Design is how it works, Affordances and signifiers.

Models we see in what they say

Our reading: their claim applies the idea without naming it. The claim is theirs; filing it here is ours.

Conventions (Jakob's law)

People bring what they learned on every other product, so familiar patterns usually win over novel ones.

Used by 5 others

Users spend most of their time on other sites, so they prefer yours to work the same way as the sites they already know.

  1. Jakob Nielsen Usability pioneer; co-founder of Nielsen Norman Group… Users spend most of their time on other sites. This means that users prefer your site to work the same way as all the other sites they already know. End of Web Designnngroup.com · 22 Jul 2000All korrents from this piece
    Users spend most of their time on other sites. This means that users prefer your site to work the same way as all the other sites they already know.

A feature that works the same everywhere needs no teaching: a first-time visitor can use it by transferring what they learned on other sites.

  1. Jakob Nielsen Usability pioneer; co-founder of Nielsen Norman Group… On the contrary, a first-time visitor to a site will be able to use expert features without having to learn the site because he or she can transfer learning from other sites. End of Web Designnngroup.com · 22 Jul 2000All korrents from this piece
    On the contrary, a first-time visitor to a site will be able to use expert features without having to learn the site because he or she can transfer learning from other sites.

Design is how it works

Judge a design by what it does for the person using it, not only by how it looks.

Used by 26 others

The winning system of the next decade will be the one that best understands the user's job to be done and shows what it is about to do, not the one with the prettiest buttons or fewest screens.

  1. Jakob Nielsen Usability pioneer; co-founder of Nielsen Norman Group… The winning system of the next decade will not be the one with the most aesthetically pleasing buttons, nor will it be the one with the fewest screens. It will be the system that best understands the human’s “job to be done,” autonomously selects the right tools on their behalf, clearly shows the user what is about to happen, and gracefully recovers when the user’s context is incomplete or ambiguous. Intent by Discovery: Designing the AI User Experiencejakobnielsenphd.substack.com · 26 Mar 2026
    The winning system of the next decade will not be the one with the most aesthetically pleasing buttons, nor will it be the one with the fewest screens. It will be the system that best understands the human’s “job to be done,” autonomously selects the right tools on their behalf, clearly shows the user what is about to happen, and gracefully recovers when the user’s context is incomplete or ambiguous.

UX does not die when the interface disappears; it becomes the design of policies, protocols and orchestration of what AI does on the user's behalf.

  1. Jakob Nielsen Usability pioneer; co-founder of Nielsen Norman Group… So no, UX doesn’t die; it metamorphoses. We’ll still craft humane experiences, but increasingly through policies, protocols, and orchestrations rather than panels and palettes. No More User Interface?jakobnielsenphd.substack.com · 8 May 2025
    So no, UX doesn’t die; it metamorphoses. We’ll still craft humane experiences, but increasingly through policies, protocols, and orchestrations rather than panels and palettes.

Affordances and signifiers

An interface should show what can be done and where, and give people a model of how it works.

Used by 11 others

Graphical interfaces have superior usability because they show people what can be done rather than requiring them to articulate what they want.

  1. Jakob Nielsen Usability pioneer; co-founder of Nielsen Norman Group… GUIs have superior usability because they show people what can be done rather than requiring them to articulate what they want. The Articulation Barrier: Prompt-Driven AI UX Hurts Usabilityjakobnielsenphd.substack.com · 26 Jun 2023
    GUIs have superior usability because they show people what can be done rather than requiring them to articulate what they want.

Incentives

Look at what people are rewarded for; it explains more behaviour than what they say, your own included.

Used by 85 others

Companies pay for design so that customers buy more and look at more ads; internet-era UX was manipulation, whatever designers set out to do.

  1. Jakob Nielsen Usability pioneer; co-founder of Nielsen Norman Group… The reason companies pay for design is to get customers to buy more and users to look at more advertisements. Intent by Discovery: Designing the AI User Experiencejakobnielsenphd.substack.com · 26 Mar 2026
    The reason companies pay for design is to get customers to buy more and users to look at more advertisements.

Leverage

Tools, code, capital and debt multiply what one person can do, in both directions.

Used by 29 others

AI will flatten the design profession: when ten AI-enabled designers do the work of a department of a hundred, the need for higher management levels shrivels.

  1. Jakob Nielsen Usability pioneer; co-founder of Nielsen Norman Group… When a team of 10 AI-enabled super-designers can do the work that used to require a UX department of 100, the need for higher management levels shrivels. I call this the “pancaking” of the design profession. Design Leaders Should Go “Founder Mode”jakobnielsenphd.substack.com · 21 Nov 2024
    When a team of 10 AI-enabled super-designers can do the work that used to require a UX department of 100, the need for higher management levels shrivels. I call this the “pancaking” of the design profession.

S-curves and diminishing returns

Most growth slows as it matures; the question is whether the curve is flattening or something new is restocking it.

Used by 22 others

The return on UX design work is declining because the usability battles have been won: the low-hanging fruit was picked and interfaces are now reasonably good.

  1. Jakob Nielsen Usability pioneer; co-founder of Nielsen Norman Group… UX design has been steadily improving over the last 50 years and is now reasonably good. The low-hanging fruit of terrible usability has long since been picked. Declining ROI From UX Design Workjakobnielsenphd.substack.com · 20 Mar 2025
    UX design has been steadily improving over the last 50 years and is now reasonably good. The low-hanging fruit of terrible usability has long since been picked.

The map is not the territory

Every model, word or plan is a simplified map of reality; useful when its structure matches, misleading when mistaken for the thing itself.

Used by 55 others

The average user is a dangerous statistical artifact: design for the gap between the median user and the heavy-use tail, not for a phantom mean.

  1. Jakob Nielsen Usability pioneer; co-founder of Nielsen Norman Group… In the world of high-stakes digital strategy, the “average user” is a dangerous statistical artifact. Don’t Design for Average Usersjakobnielsenphd.substack.com · 19 Mar 2026
    In the world of high-stakes digital strategy, the “average user” is a dangerous statistical artifact.

Value moves to what stays scarce

When something becomes cheap and plentiful, the value moves to whatever is still rare next to it.

Used by 60 others

Making coding easy makes design more critical, not less: when anyone can produce working features, the quality of the experience is what sets products apart.

  1. Jakob Nielsen Usability pioneer; co-founder of Nielsen Norman Group… In a vibe coding future, companies will hopefully invest more in understanding user needs, refining the interface, and polishing details that delight users, because those are harder for AI to get right without guidance. Vibe Coding and Vibe Designjakobnielsenphd.substack.com · 7 Mar 2025
    In a vibe coding future, companies will hopefully invest more in understanding user needs, refining the interface, and polishing details that delight users, because those are harder for AI to get right without guidance.