The difference between vector graphics and bitmap graphics is that vectors are based on mathematical equations to create geometrical primitives such as points, lines, curves, and polygons. Because of this, no matter how many times a vector is resized, it will still keep its original quality.

Vector graphics are especially useful for information graphics- visual representations of information, data or knowledge, such as signs, maps, journalism or technical writing. Line art is also a popular and widely used technique, which is basically any image that consists of distinct straight or curved lines placed commonly against a plain background. Line art usually is shaded with graduations of color to represent two-dimensional or three-dimensional objects. Overall, line art emphasizes form and outline over color, shading, and texture.

There are many different programs out there that offer tools specific to vector art. The most popular and typically most expensive is Adobe Illustrator from the creators of infamous Photoshop. With this software, ameuteurs can easily work their way through the control panels and get on the road to creating beautiful illustrations.
Photoshop itself has tools for creating vector art. The pen tool, a powerful feature that allows users to create custom shapes and designs, is a difficult tool to grasp at first. But nothing is as rewarding as figuring out the mysteries that photoshop has to offer.