psychology⁽⁵⁾

Bite-sized psychology insights for designers. Each of the 100 chapters covers one principle — how people see, read, remember, think, focus, feel, decide, and act — with direct design implications.

Why design guidelines exist, explained through cognitive psychology. Covers perception, attention, memory, and decision-making — the science behind why certain UI patterns work and others fail.

Nir Eyal's framework for building products people can't put down. The Hook Model — trigger, action, variable reward, investment — explains the psychology behind habit-forming products and gives designers a practical toolkit for driving engagement ethically.

Ten psychological principles that shape user behavior — Fitts's Law, Hick's Law, Miller's Law, and more. Each law is explained with examples and practical applications. A quick, beautiful reference for evidence-based design decisions.

Stephen Anderson explores how to create pleasurable, engaging experiences by applying principles from psychology, game design, and storytelling. Goes beyond usability to show how emotional design and playful interactions make products memorable.