The document summarizes several theories of art development in early childhood education, including psychoanalytic theory, perceptual theory, and perceptual delineation theory. Psychoanalytic theory proposes that children's art reflects their emotions and can be interpreted to give insight into their personality. Perceptual theory suggests that children draw what they see by translating 3D objects into 2D drawings. Perceptual delineation theory argues that multiple factors influence children's drawings, including their psychological environment, information processing abilities, and skill with art materials.