The box is the most useful form in drawing: books, houses, tables and cars all start as boxes. Here is a simple way to draw one at an angle.
- Draw the nearest vertical edge first, the corner closest to you.
- Draw the two bottom edges going back from it, one to the left and one to the right.
- Draw the far vertical edges, a little shorter than the near one.
- Close the top with edges that match the bottom ones.
Key idea
Edges that are parallel on the real box either stay parallel or come together as they go back on paper. They never spread apart.
Why it works
Things farther away look smaller. So the far end of a box looks a little smaller than the near end, and its edges lean toward each other. For a small box, the change is tiny and parallel edges look fine. But nothing gets bigger as it moves away, so edges that spread apart always look wrong. In perspective you will see exactly where receding edges meet.
Worked example: Checking a box
Ana drew a box, and its back edge is longer than its front edge. What is wrong, and how can she fix it?
- The back edge is farther away, so it should look the same length or shorter.
- She can shorten the back edge so the side edges stay parallel or come together slightly.
Answer: The back edge is too long; make it the same length or a little shorter.
Common mistake
People draw the back edges of a box farther apart than the front ones, so the box looks warped. Check each set of edges that go back into space. Hold a pencil along them: do they stay parallel or come together? If they spread apart, fix them.