The cube is in two point perspective, the way you see things in real life. If it looked like a regular cube you'd only have one eye (hence the name one point perspective).
One point perspective = viewing an object where your perspective is aligned precisely with an axe the object is oriented towards
Two point perspective = viewing an object through a point on a face of two axes but still being on 0 with the third axe
Three point perspective = viewing an object in a position which does not correspond to one or two point perspectives
Also could be the amount of points you draw all of your lines to, as long as it is perfect.
My model follows the
three two point perspective rule for the first definition but N/A for the second because it is not perfect.