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The democratization of design knowledge is at the very heart of our mission. That’s why—over 20 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.

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

Research Bibliography

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

Latest UX Design Articles

UX Daily is the world’s largest free online resource on UX Design, with new articles published every day.

Contributing Authors

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

Don Norman
Don Norman Director of The Design Lab at the University of California

Don Norman is widely regarded as the creator of the term “UX design.” An expert in design, usability, and cognitive science, Norman strongly advocated for user-centered design, which now underpins almost all design fields. His ideas on aesthetics, affordances, and usability profoundly impact the way we design everything, from doors to software applications.

In 1993, he joined Apple as a User Experience Architect—the first-ever use of the phrase “user experience” in a job title. Norman’s books, The Design of Everyday Things and Emotional Design, are regarded as essential readings for any design student. He is currently director of The Design Lab at the University of California, San Diego, and is also co-founder of the Nielsen Norman Group.

Don Norman is the author of numerous books including "Emotional Design," and more recently, "Living with Complexity." He is co-founder of the Nielsen Norman group, a professor at KAIST (in Korea), an IDEO fellow, and a design theorist, studying the fundamentals of modern design.

Donald A. Norman has a Bachelor of Science in Electrical Engineering from MIT and a Doctor of Philosophy in Psychology from the University of Pennsylvania. He also holds an honorary degree from the University of Padua, Italy. He has been a professor of Computer Science (at Northwestern University), Psychology, and Cognitive Science (at the University of California, San Diego).


Karen Holtzblatt
Karen Holtzblatt CEO at InContext Design

Recognized as a leader in the design community, Karen has pioneered transformative ideas and design approaches throughout her career. Karen is the inventor of Contextual Inquiry-the industry standard for gathering field data to understand how technology impacts the way people work. Contextual Inquiry and the design processes based on it provide a revolutionary approach for designing new products and systems based on a deep understanding of the context of use. Contextual Inquiry forms the base of Contextual Design, InContext's full customer-centered design process.

Karen co-founded InContext Enterprises in 1992 to use Contextual Design techniques to coach product teams and deliver customer-centered designs to businesses across multiple industries. The books, Contextual Design: Defining Customer-Centered Systems, and Rapid Contextual Design, are used by companies and universities all over the world. Karen is a member of the CHI Academy (awarded to significant contributors in the Computer-Human Interaction Association) and received the first Life Time Award for Practice at CHI2010 for her contributions to the field. Karen's extensive experience with teams and all types of work and life practice underlies the innovation and reliable quality consistently delivered by InContext's teams.

Karen also has more than 20 years of teaching experience, professionally and in university settings. She holds a doctorate in applied psychology from the University of Toronto.


Ann Blandford
Ann Blandford Professor

Ann Blandford is Professor of Human-Computer Interaction in the Department of Computer Science at University College London and served as Director of UCL Interaction Centre (UCLIC) (2004-2011). Her teaching includes User-Centred Evaluation Methods on the MSc in HCI with Ergonomics at UCL. She started her career in industry, as a software engineer, but soon moved into academia, where she developed a focus on the use and usability of computer systems. Ann leads research projects on human error and on interacting with information, with a focus on modeling situated interactions. In particular, she leads an EPSRC Platform Grant on Interactive Systems in Healthcare, and an EPSRC Programme Grant, CHI+MED, on Human-Computer Interaction for Medical Devices. She has been technical program chair for several conferences, the most recent being NordiCHI 2010. See http://www.ucl.ac.uk/uclic/people/a_blandford/ for more detail.


Frank Spillers
Frank Spillers MS

Frank Spillers is a web and software usability expert, a distinguished speaker, author, and internationally respected Senior Usability practitioner. He is an expert in improving the design and usability of large-scale websites, web applications, desktop, and mobile apps. He is the founder of the usability consultancy firm Experience Dynamics. With an MSc in Cognitive Science and eleven years of experience in UX design, Spillers has worked with clients such as Hewlett-Packard, Intel, and Microsoft. He is an experienced practitioner of user-centered and emotional design and has developed a new research technique called “cognitive archeology,” which aids experts when researching emotional product design.

Before founding Experience Dynamics in 2001, Frank managed usability consulting for WebCriteria (now Coremetrics) and worked with students of Dr. Donald Norman (the grandfather of User-Centered Design) at Intuitive Design, a San Diego-based User-Centered Design consultancy. His current clients include Microsoft, Intel, IBM, Logitech, GE, Nike, Hewlett-Packard, KeyBank, Four Seasons, Chase, Target.com, and Whitepages.com. He has trained thousands of teams and individuals in usability and User-Centered Design techniques in private as well as public settings.

Frank received his Master's in Cognitive Science (MS) from Birmingham University, the UK in the user experience of collaborative (social) virtual (3D) environments.


Margaret Burnett
Margaret Burnett

Margaret Burnett is an OSU Distinguished Professor at Oregon State University. She began her career in the industry, where she was the first woman software developer ever hired at Procter & Gamble Ivorydale. A few degrees and start-ups later, she joined academia, with a research focus on people who are engaged in some form of software development. She was the principal architect of the Forms/3 and FAR visual programming languages and co-founded the area of end-user software engineering, which aims to improve software for computer users that are not trained in programming.

She pioneered the use of information foraging theory in the domain of software debugging and leads the team that created GenderMag, a software inspection process that uncovers gender inclusiveness issues in software from spreadsheets to programming environments. Burnett is an ACM Fellow, a member of the ACM CHI Academy, and an award-winning mentor. She currently serves on three editorial boards, and has served in over 50 conference organizations and program committee roles. She is also on the Academic Alliance Advisory Board of the National Center for Women In Technology (NCWIT).

Burnett was a recipient of IBM's International Faculty Award (2007, 2008). She was also recently honored with Oregon State University's Excellence in Graduate Mentoring Award (2010), OSU College of Engineering’s Research Award (2009), OSU College of Engineering’s Research Collaboration Award (2005), and with OSU’s Elizabeth P. Ritchie Distinguished Professor Award (2000). She is a past recipient of the National Science Foundation’s Young Investigator Award (1994).


Alan Dix
Alan Dix Professor

Alan Dix is a computing professor at the Human-Computer Interaction (HCI) Centre of the University of Birmingham, UK. He is a co-author of the global, bestselling university-level textbook Human-Computer Interaction. Dix is passionate about designing things that connect humans and computers—everything from machines to software. He has co-authored and published hundreds of papers on HCI, covering topics ranging from information visualization and usability to designing for appropriation.

Alan Dix has taught and researched human-computer interaction (HCI) for nearly 30 years. His interests in the area range from the application of formal techniques in interface design to methods for enhancing innovation and creativity. He began as a mathematician at Cambridge University and moved into computing and HCI whilst doing his Ph.D. at the University of York. His background also includes work on farm crop sprayers and remote-controlled submarines. He was one of the founder-director of two Internet dot.com companies.


We only invite contributions from globally recognized authorities within their respective design fields.

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