designs216
macrumors 65816
It has vast capabilities like Photoshop. Key commands from other Adobe apps don't always carry over either but if you're familiar with other CS programs it helps you learn Illustrator. I've found Adobe's Classroom In A Book series very helpful. The books specialize in hands-on exercises that allow one to become familiar with the most widely used features. If you're diligent, you could probably gain basic proficiency over a long weekend.