A classic essay about how markets link each other is entitled “I, Pencil,” written by Leonard E. Read (his real name). It is available for free online at the Library of Economics and Liberty. As you might suspect, it is written from the point of view of a pencil. One line is particularly famous: “no single person on the face of this earth knows how to make me.” Based on what you’ve learned in this chapter about how markets link the world, how is this true?