Now, before we go any farther with the artist’s method of composition, let me invite you to do a little composing on your own account. That wall in your special room or den where you hang your favorite photographs--how is it arranged? Are the photographs pinned up higgledy-piggledy, so as to crowd as many as possible on the wall? Is your only idea just to hang them up where you can see them? Or have you placed them together in such a way that their actual arrangement, as they spot the open space of your wall, is agreeable to your eye? For, in a way, your wall, before you hung the photographs, was like the bare canvas of the artist. The four edges inclosed it; the space is yours to do with it what you wish.