The term 'Principles of Artistic Beauty' is often used to refer to the concept of aesthetics, which is the study of beauty and art. Aesthetics is a branch of philosophy that examines the nature of beauty and how it is experienced and interpreted by individuals. It is concerned with the appreciation of art, its forms, and its effects on people. Aesthetics also looks at the relationship between art and culture, and how art can be used to express ideas and emotions.