What I am learning in this class

I am learning mostly about the basics of Graphic Design. It's all about sillouhettes and shapes, not lines. When you are drawing an illustration, keep in mind the basic shape and shadow of the subject and how recognizable it looks; There are quick, universal symbols and shapes that everyone recognizes.
I also learned about the quality of brushes. A good brush will make thin and thick lines, but those are the more expensive ones. To keep a brush from getting fumbled and destroyed in your backpack, make a triangular prism shape with cardboard and tape it so it fits snugly over the head and barrel of your brush. The barrel is the metal ring that binds the brush head with the handle.
Always clean your brush after you are finished using it. Don't press too hard, either. Shape the brush so that it may dry back into a pointed edge. Don't ever put a new brush in your mouth to shape it- you will get poisoned because the manufacturers put glue and insecticides on the brush for shipping. I have learned considerably much so far in this class.