Object Size in Photography

This picture says a lot about the size of people and objects. In photography it's a nice effect when you compare the sizes of things.

One never thinks of a small person in terms of an old cranker of car. The car looks really big compared the boy, making it seem much bigger than it really is.

The woman on the left side of the image gives a third object so that your eye is making an evaluation not just on the car, but also on her and she, too, looks really large because the boy is the main object in the picture. He's the object to which you compare all other objects.