Gestalt principles are fundamental concepts from psychology that describe how people perceive and interpret visual elements as unified wholes rather than just a collection of parts. These principles are highly relevant in industrial design because they help designers create products that are not only functional and usable but also aesthetically pleasing and easy to understand.
Visual Relations that help to create cohesive look: symmetry, intersecting, interlocking, continuation, wrapping, closure, similarity, proximity, common fate (synchrony), visual echoing, focal point (emphasis).