UX Laws: Using Psychology to Design Better Products & Services Jon Yablonski is an English-language printed study book that focuses on applying psychology within UX design. This book is suitable for professionals who want to gain a deeper understanding of how users exhibit digital behavior.
Understanding psychology—especially how users interact with digital interfaces—is essential for designing effective, human-centered products. This book explains how to apply psychology to create better products and experiences that align with human perception and processing.
Key topics include:
- The link between aesthetics and positive user responses
- Psychological principles and their applicability in UX design
- UX heuristics and predictive models such as Fitts’s law, Jakob’s law, and Hick’s law
- Ethics when using psychology in design
- A practical framework for applying psychology within the design process
This revised edition pays extra attention to the underlying psychological concepts and includes up-to-date examples of apps and digital experiences.
The book aligns thematically with topics such as user interface design, usability, and behavioral economics.

