In this tutorial, we learn how to draw an 18 wheeler semi truck. Start out using a pencil to draw the outline of the truck, using lines on a vertical point to make sure everything is even. After this, use your pencil to smudge darker marks throughout the truck. Next, use the pencil to make darker lines for the outline of the truck and add in more details to it. Make sure to draw in the tires, as well as the windshield and the headlights. Turn the paper around to get the best angles while drawing this, and when you are finished you will have a great drawing!