This document discusses various visual elements used in art including line, shape, form, space, perspective, light, color, and texture. It defines different types of lines such as contour lines, curvilinear lines, and implied lines. It also describes geometric shapes, organic shapes, positive and negative shapes, and figure-ground reversal. Additionally, it covers topics such as linear perspective, atmospheric perspective, implied motion, light, color schemes including primary/secondary/tertiary colors and warm/cool colors, and textures both actual and implied.