Vector art is any digital image in which the shapes in the art are created by mathematical equations within a computer using a software program such as Adobe Illustrator. Geometric objects are placed together to create an illustration while the computer keeps track of each item's location, curve and relative proportion to the other objects.
Vector images can be enlarged infinitely without losing quality. Another advantage of vector art is that, unlike raster art, the work created always takes up the same amount of memory in your computer. This means that you can create images as large as you want and still not have it affect the file size of your digital illustration. With raster artwork, larger images mean much larger file sizes.
Check out these samples of vector art that I created.