Gestalt Principles
Psychology-based design rules explaining how humans perceive visual elements as unified wholes, including proximity, similarity, closure, and continuity. Applying gestalt principles creates intuitive groupings and relationships without explicit visual separators. These principles underpin effective layout and information architecture.
Material Design
Design
Google's design system combining flat design principles with subtle shadows and motion to suggest physical depth and surfaces. Material Design provides comprehensive guidelines for creating consistent, intuitive Android and web interfaces. Many principles translate to general interface design beyond Google products.
