Artbaords in Illustrator can be though of as your design canvas. Illustrator documents can have multiple Artboards, and each Artboard can be a custom size. I tend to set up Illustrator with a grid of Artboards, five across and five down. This allows me to design a five-step conversion path, and iterate on each step either vertically or horizontally by copying from one Artboard to the next.
For now, we are simple doing to see how Illustrator handles rearranging a grid of Artboards.