What makes a great artist? What makes a great artwork? Beauty? Emotion? Content? Originality? Novelty? Chance? Sensitivity? Genius? Rarity? Price? Who defines these values and how are these judgements made? Curators? Art Historians? Critics? Artists? Art Dealers? Collectors? Museums? How is art history made? What are the underlying mechanisms and rules? Are they the same everywhere at all times in all societies and all periods?