Laws of UX is a fantastic website that makes “complex psychology heuristics” easier for designers to understand. The site explains common cognitive biases, gestalt principles, and heuristics that affect how users interact with user interfaces.
Images are used to make heuristics easier to understand and memorable. The site also provides an overview and key takeaways for each heuristic or principle, explains its origin, and includes links to additional reading.
For example, Laws of UX defines the Law Of Similarity (a Gestalt principle): “The human eye tends to perceive similar elements in a design as a complete picture, shape, or group, even if those elements are separated.”
The site explains how the Law of Similarity can be considered when designing user interfaces: “Ensure that links and navigation systems are visually differentiated from normal text elements.”
The creator of Laws of UX, Jon Yablonski, has stated that there will be an update to the website, which I’m looking forward to. Yablonski has also published a book, Laws of UX, with O’Reilly Media.