One point perspective is when you have a horizon and one vanishing point. What is a horizon? Horizon is what your eye level is when you're looking at something. So it will always vary depending on your height. What is a vanishing point? It is where everything converges in a distance into a single or multiple points. And when do you use one point perspective when you're drawing symmetrical things or environments and you're looking straight on such as road, roads of trees, middle of the courtyard, etc. So you have a horizon in the middle and usually you put a, this is a one point perspective when you has one dot right here, which is a one vanishing point. So everything in this frame will converge into here. And then things spread out like this into that one vanishing point. One option would that be kind of like a courtyard. You have this, you have an arch right here like an entrance right here's the wall. Anything that's below horizon line, you'll be seen top parts of objects. Anything that's above this horizon line, you will be kind of looking up. You will see the bottom part of the object. So what is a two point perspective? Two point perspective is when you have a horizon and you have two point two vanishing points instead of one. And when do you use it? You use two point perspective when painting exteriors of your environments. When you're showing the front and the side of a vehicle, a building or an interior concept art. And this is most commonly used perspective in art. And let me show you how. Let's say this is your frame, your environment. Okay. Now you place your horizon line somewhere here. Now you're going to have one vanishing point up here, the one vanishing point in here. And they're going to go like this. Now let's talk about three point perspective is when you have a horizon and three vanishing points. And when you use this in rare occasions, when you want to show something that scale or something, when you're looking up at a building or you're looking down at a building from an airplane, like let's say Superman flying over a city. And here how it is, how it's set up.