Universal Principles of Design: 100 Ways to Enhance Usability, Influence Perception, Increase Appeal, Make Better Design Decisions, and Teach Through Design
- Author
- William Lidwell, Jill Butler, Kritina Holden
- Year
- 2003

A cross-disciplinary reference covering design principles from the 80/20 rule to Ockham's razor, now expanded to 200 entries, each explained over two pages with visual examples of the principle in practice. It is used across fields from marketing to product and exhibition design as a quick-reference toolbox of shared methods.
The classic cross-disciplinary reference: a hundred design principles, from the 80/20 rule to Ockham's razor, each defined and shown in practice. A toolbox for the SDF's Procedures component and its procedural facet — the shared methods and rules-of-thumb the discipline reasons with.
The book is a cross-disciplinary encyclopedia of principles relevant to successful design, now expanded to 200 entries in its most recent edition. Each principle is presented over two pages, pairing a clear explanation with visual examples of the idea applied in practice, in fields ranging from marketing and video games to museum exhibits and control systems. It is organised alphabetically for quick reference and is widely used by designers, engineers, architects and students.
Where to find it
In the framework
- Procedures Component
- Procedural (Methodological) · facet
- Semiotic-Communicational · facet
Books and references