From our text, ArtTalk, form is described as "...objects having three dimensions. Forms are either geometric or free-form".
It is important to note the difference between Shape and Form as we have now discussed both. Shape is 2D and has height and width. Think of a drawing of a triangle. Form has height, width, and depth. Think of a sculpture of a pyramid.
Geometric Form:
To better understand geometric form, think of a regular geometric shape (like a circle) and imagine it's three-dimensional counterpart (a sphere). We can build geometric forms into our visual art, such as the orbs that will serve as eyeballs in a sculpture. Have a look at this architectural example, a building made of geometrical forms:
Free-form (also known as organic form): Imagine shaping a piece of clay in a way that did not resemble any geometric shape or form, but rather had a natural appeal, like the shape of clouds or boulders. Here is a great example, a vase by Swedish artist Per B Sundberg:
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