A two-point perspective si a linear perspective in which parallel lines along the width and depth of an object are represented as meeting at two separate points on the horizon that are 90 degrees apart as measured from the common intersection of the lines of projection.

With two point perspective, two vanishing points are placed on the horizon line. These two points should be spaced out from each other to prevent distortion. Both vanishing points need not both be within the picture plane, just as long as they are found on the horizon line, which continues on off of the picture plane in both directions.