The document discusses the subjects of art and how they are presented. There are two main kinds of art subjects: representational art, which depicts recognizable objects through forms like portraits, landscapes, and still lifes; and non-representational art, which is abstract and does not reference real-world objects, instead focusing on content and how the artwork is depicted. Examples of representational subjects are portraits, landscapes, seascapes and cityscapes, while non-representational art has no recognizable objects and is abstract in nature.