one-point perspective
A drawing method that makes a flat picture look deep, using one vanishing point on the horizon line.
horizon line
A horizontal line across the picture that shows the viewer's eye level.
vanishing point
The point on the horizon line where parallel lines going away from the viewer seem to meet and disappear.
orthogonal lines
Lines that go back into the picture and meet at the vanishing point.
eye level
The height of the viewer's eyes. In a drawing, it is shown by the horizon line.
bird's-eye view
Looking down at a scene from high above.
worm's-eye view
Looking up at a scene from down low.
composition
How the parts of an art work are arranged.