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When making sense of a design, we tend to organize visual elements into groups. Grouping related pieces of information together can make a design easier to comprehend. Here are some ways this can be achieved.
PROXIMITY
When several items are placed close together, they are perceived as more related than items that are placed further apart. (You can also nest groups of information within larger groups of information.)
WHITE SPACE
Placing related items closer together and leaving a bigger gap between unrelated items.
CLOSURE
When faced with a complicated arrangement of items, we will often look for a single or recognisable pattern or form. A real or imaginary box can be formed around elements due to their proximity and alignment.