This lesson presents page composition of your page or canvas with the three vanishing points far outside the finished picture. You watch a three point perspective illustration of a tree house come to life as it's sketched and inked with light source in mind.
Step by step drawing basic three point perspective, below the horizon line. This gives you a birds' eye view. The second lesson is Three point perspective drawing, looking up.
This video guides you in drawing shapes using three point perspective. This exercise can teach us to see what we're looking at, to get it on paper, so we can create dimensional work on a flat surface.