First proposed by German psychologists, based on the principle that the whole is greater than the sum of its parts.
Elements tend to be perceived as a complete whole if they are aligned, even if some information is missing.
Elements that move in the same direction will tend to be perceived as a group.
The eye will naturally follow the smoothest path.
Elements that are close to one another appear to form groups, even if they have different characteristics.
Elements that share characteristics tend to be perceived as a group.
Czech psychologist and one of the founders of Gestalt psychology.