This document discusses the definitions, assumptions, categories, and nature of art. It begins by outlining three learning outcomes related to defining art from philosophical perspectives, categorizing works based on experience, and characterizing assumptions about art. The document then provides various definitions of art, including perspectives from philosophers like Plato and Ruskin. It describes five assumptions of art: that art is universal, cultural, not nature, about experience, and a form of expression. The document also categorizes art into visual, performing, literary, and applied forms. It concludes by assessing the timeless and experiential nature of art.