Sometimes, a paintbrush is used to create great circles, squares, and triangles of color that do not look like anything that can be found in life. The exciting, dynamic, and vivid use of the paintbrush show the viewer an imaginary world from the mind of the artist that only paint can create in its use of color. Sometimes a paintbrush can be used to blend colors on the canvas, to show the viewer what life is like, such as the complex expression of a human being or a scene in nature. A brush, in combination with the right kind of paint for the fibers or texture of the brush can create a uniquely expressive, human and startling idea on the canvas.

The brush can be large, small, as fine as a needle, and made from artificial or natural bristles. It can be dipped in oil or used to splatter acrylics or water-based paint. The combination of bristles and paint depends on the way that the artist wishes to show human life, and also the relationship between the artist, the brush, and the canvas. With the right brush and the right technique, the images in the mind of the artist become alive.

Secondly, a paintbrush can be used for creating different types of marks and textures on a canvas, depending on the way that the artist wets or twists the brush. Depending on the brush type and size, a brush can create lines that are as fine as a pen or as great and...

The brush can create interesting marks and textures on the paper that cannot be made by ink or by pen or pencil. The uses of the brush are only limited by the creativity of the human mind. Or, to take a more conservative view the creativity of the brush is only limited by the art student's steady hand and technique.
Of course, in general it depends on the medium that suggests, to the artist, what brush to use when working oil, ink, or acrylic paint. But using the right brush with the right medium in the right frame of mind is not always easy. Getting to know one's paintbrush and palate of paintbrushes, just as one must get to know one's color wheel and range of ideas and mediums, is an important part of becoming a great artist, or at least a professional artist who knows how to use the tools of his or her trade.

Finally, the paintbrush can be used to remove dust or dirt on sculpture. The paintbrush can be used with other types of media. The paintbrush can be used to paint a sculpture. The paintbrush can be used to paint a house that is a work of art. The paintbrush can be used alone to create a work, or with all of the other tools at the artist's disposal, to blend, to create texture, to shade, to scatter color, and to express the artist's vision and self -- and to teach the artist too!