Since a compelling photograph is usually about an effective arrangement rather than about the content, are there “rules,” or guidelines, for creating the most effective and engaging composition? Interestingly enough, there are. I call them the rules of engagement, and we’ll cover two of the biggest in this chapter: the first is what the Greeks called the Golden Section, which, as many photographers will suggest, was later identified in many photographic tutorials as the Rule of Thirds; the second is about using line to define visual weight in your image.