Answer:
Visual art manifests itself through media, ideas, themes and sheer creative imagination. Yet all of these rely on basic structural principles that, like the elements we’ve been studying, combine to give voice to artistic expression. Incorporating the principles into your artistic vocabulary not only allows you to objectively describe artworks you may not understand, but contributes in the search for their meaning.
The first way to think about a principle is that it is something that can be repeatedly and dependably done with elements to produce some sort of visual effect in a composition.
The principles are based on sensory responses to visual input: elements APPEAR to have visual weight, movement, etc. The principles help govern what might occur when particular elements are arranged in a particular way. Using a chemistry analogy, the principles are the ways the elements “stick together” to make a “chemical” (in our case, an image).
Another way to think about these design principles is that they express a value judgment about a composition. For example, when we say a painting has “unity” we are making a value judgment. We might also say that too much unity without variety is boring and too much variation without unity is chaotic.
The principles of design help you to carefully plan and organize the elements of art so that you will hold interest and command attention. This is sometimes referred to as visual impact.
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