Here's an odd thought. All novels are composed of just a bunch of squiggly lines, lines that form letters, letters that form words, words that form sentences. But we wouldn't say that a novel is just a bunch of curvy lines and shapes. Deciphering the lines in a novel leads us to something much deeper than the forms used to write the novel. The same can be said for photography and the shapes, lines, textures, and colors that we use to make an image.