Join us

The Biggest and Most Authoritative Library of Open-Source UX Design Resources

Open-Source, Open-Access Literature

The democratization of design knowledge is at the very heart of our mission. That's why—over 23 years after we started—we will never stop bringing leading designers, bestselling authors, and Ivy League professors together to create open-source, free-to-access textbooks on UX design. This is the world's most comprehensive compendium of design knowledge, made available to everyone around the world.

Book's cover image: The Encyclopedia of Human-Computer Interaction, 2nd Ed.

The Encyclopedia of Human-Computer Interaction, 2nd Ed.

Free textbooks written by more than 100 leading designers, bestselling authors, and Ivy League professors. We have assembled our textbooks in a gigantic encyclopedia, whose 4,000+ pages cover the design of interactive products and services such as websites, household objects, smartphones, computer software, aircraft cockpits, and what have you. Name an item of design interest, and you'll probably find it discussed inside.

Table of Contents

Latest UX / UI Design Articles

IxDF Blog is the world's largest free online resource on UX Design, with new articles published every day.

Read more articles

Top UX / UI Design Topics

A comprehensive resource for UX professionals, covering essential terminology and concepts in UX / UI Design.

Design Thinking (DT) 51 articles 10 videos
User Experience (UX) Design 156 articles 8 videos
Graphic Design 19 articles 4 videos
Color Theory 7 articles 6 videos
User Interface (UI) Design 65 articles 9 videos
Gestalt Principles (GP) 4 articles 3 videos
Human-Computer Interaction (HCI) 10 articles 6 videos
Web Design 13 articles 9 videos
User Centered Design (UCD) 12 articles 10 videos
UX Research 33 articles 4 videos
Service Design 12 articles 9 videos
Prototypes 8 articles 10 videos
View all topics

Contributing Authors

We are honored to have these highly regarded professors and experts as contributing authors of our educational materials:

View all authors

Research Bibliography

Browse the world's largest Wiki Bibliography on human-centered technology, comprising 138,000 authors in more than 127,000 publications.

Browse By

Our open-source books

Open Access—Link to us!

We believe in Open Access and the democratization of knowledge. Unfortunately, world-class educational materials such as this page are normally hidden behind paywalls or in expensive textbooks.

If you want this to change, , link to us, or join us to help us democratize design knowledge!

Get Weekly Design Insights

Join 314,835 designers who get useful UX / UI Design tips from our newsletter.

Please write a valid email address.

Cite according to academic standards

Simply copy and paste the text below into your bibliographic reference list, onto your blog, or anywhere else. You can also just hyperlink to this page.

What is this?
Interaction Design Foundation (2025, January 1). Open-Source, Open-Access Literature. Interaction Design Foundation - IxDF.