Basic Drawing Made Amazingly Easy (Made Amazingly Easy Series)

1. VPL

2. Horizon line


3. VPR
   As you can see, all diagonal lines can be turned into vanishing lines
   that converge toward VPL or VPR. Remember, there isn’t enough
   room to show the vanishing points on the horizon line, so we assume
   they exist somewhere off to the left and to the right, on the horizon line,
   just out of sight.