At first sight, the question "what is art?" seems so daunting, high-flown and beleaguered by personal opinion and academic speculation that it hardly seems worth asking, let alone trying to answer.
The truth, happily, is much simpler. The major cause of our confusion is mixing up art with what art does. Art actually isn't any particular thing - it is the way things are made.
We talk, and correctly, about the art of cooking, the art of boat-building, flower-arranging and even the art of politics.
We say things were "done artfully" when we admire the skill with which something is done or achieved.
We talk about the "dark arts" - nowadays mainly when we talk about PR or political spin, and only sometimes about Harry Potter.