Miller’s Law describes a fundamental limitation of human memory: the average person can only hold about seven items (plus or minus two) in their working memory at one time.
Rooted in cognitive psychology and widely applied in UX design, this law reminds us that users can easily become overwhelmed when interfaces demand too much recall at once. Long lists, dense navigation, or information-heavy screens increase cognitive load and reduce comprehension. Effective interfaces support memory by chunking information, simplifying choices, and relying on recognition rather than recall.
This poster presents Miller’s Law as part of a broader collection exploring cognitive laws and UX fundamentals — created for designers, product teams, and anyone interested in how humans process and retain information in digital experiences.
Museum-quality poster made on long-lasting matte (uncoated) paper.
