I think it is safe to say that the most basic form of art is drawing.
Before you can make beautiful paintings you need to learn how to draw. Drawing skills are also the basic requirement for 2D animators, and mostly required to enter a design colleague. Even though you have superb concepts flying around your head, it's quite useless if you can't express it in a real form. You need to be able to DRAW practically everything to express every details of your imagination. Of course you can always learn it along the way. But still, walking on a properly built bridge is more reassuring then walking on a rushed, poorly built bridge, worrying if it's sturdy enough for you to cross. How many times do you want to fall before you're convinced to build a stronger basic?
So, what is the most basic of drawing?
