Real World Adobe Creative Suite 2

Vectors are like gold. They can be modified by moving anchor points. They are easily scaled up or down without losing quality (resolution). They can be pasted between applications. As you use the Creative Suite applications, remember which features create vectors and which ones don't.

Knowing which formats support vector data will help you avoid nasty surprises when you go to press and see fuzzy pixels instead of your clean, crisp, golden vector shapes.