For exercise E we are going to do something a little different. First we want to start with a good size sketch pad or paper on a normal easel at a slight angle. Then using arm motion only make long strait lines from one side to the other starting at the top and working your way down. Do the lines from point to point without stopping and going over your lines again. These lines need to perfectly parallel to the top of the paper. You will find this much harder than it sounds. Practice this until you can make really perfectly strait and parallel lines. This should be easy to judge even if you have to get out a ruler to check your self. And remember be honest with your self on this.