Abstract art uses the appearance of the world as a starting point and then simplifies or exaggerates parts.  

Relieved symmetry is almost symmetrical but not quite.

The objects or event that an artwork depicts is its subject matter.

One role of artists is to create extra-ordinary versions of ordinary objects.

A line can be described as the path left by a moving point.

The principle of art called unity involves creating a pleasing sense of harmony.

Contrast can be described as differences between things.

Watercolor’s primary characteristic is its transparency.

The creation of a photographic body of work around an event, place, or culture is known as photojournalism.

Works of art can be unified conceptually.