I invite you to get curious with me before you read the rest of this article. Look around the room and find an object that catches your eye. Study it closely. Look at where the shadows and light meet each other, and wonder at their points of engagement. Do you see areas that abruptly go from light to dark? Any areas that softly and gradually transition through more subtle lighting? Notice lines and curves, and how they reveal details about your chosen object. Can you tell which direction the light is coming from and how it affects the shadows being cast?