In kindergarten, you made art by cutting out pieces of colored paper, then taking the colored shapes and gluing them together on a background. You may not have known it then, but you were creating vector art. Programs like Illustrator let you create digital art the same way. You make solid shapes by connecting straight or curved paths (vectors are the mathematical formulas your computer uses to trace each path from start to finish). You can even start with a square and cut out the shape you want. Then you layer your shapes on top of each other to create your artwork. Vector art has a clean, crisp look at any size or resolution, but photorealistic details like texture, shading and dimension require considerable skill. If you value detail over precision, you probably want to use a bitmap program like Photoshop or a 3D rendering program like SolidWorks.