One-Point perspective is a type of linear perspective that uses a single vanishing point to create the illusion of depth in an artwork. There are several methods of linear perspective, but one-point which is a single-point perspective is the simplest drawing method. 

This drawing method shows how things appear to get smaller as they get further away, converging towards a single ‘vanishing point’ on the horizon line. This way of drawing objects upon a flat piece of two-dimensional drawing surface makes them look three-dimensional and realistic. This will create an illusion of depth on the drawing surface.