Dynamic Form - art that appears lively, moving, and changing, even though they are actually stationary.

Static form - appear to be still, unchanging

Overlapping - one of the earliest devices used to suggest 3D ality

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Shading/Modeling - brings out a sense of spatial depth

Hard edge shape - are boundaries clearly distinguished from surrounding areas by contrasts in color along the edges where they meet.

Soft edge shape - are boundaries that are not precisely delineated.