text: Chapter 4
  Use Common Shapes for Common Objects
  4-271. Use common shapes to show common objects such as roads, buildings, and poles (Figure 4-15).
  Figure 4-15. Example drawing technique: use of common shapes to show common objects.
  Use Perspective Drawing
  4-272. Draw in perspective (Figure 4-16).
  Figure 4-16. Example drawing technique: use of perspective to represent depth.
  Use Vanishing Points
  4-273. Use vanishing points (Figure 4-17).
  Figure 4-17. Example drawing technique: use of vanishing points to indicate distance.