How does a magician saw a woman in half?

A woman enters the box and curls herself up in the top half. The box is usually more spacious that it appears. Audience only sees the box from one angle, so the box is elongated in the audience's direction, increasing the depth and size of the box without making it look bigger.

What magicians do are closely guarded secrets available only to members of the cartel. Penn and Teller in their TV programs have give away some tricks but this is one thing that will not be given out. Davi Copperfield the magician even made the statue of liberty dissapear. This is what you call illusion.