This essay will explore three definitions of the word “edge” and how it relates to art. The first is the ideal edge as horizon; this horizon acts as an edge both formally and conceptually. It can manifest as a literal edge between the earth and the sky, or as a possible precipice of thought and meaning. I use Caspar David Friedrich’s Wanderer Above the Sea of Fog to exemplify this point. Second, I will discuss edges in painting and how they can act as a boundary lines, between artists, viewers and others who occupy the art world. To conclude this discussion on edges, I will speak to the formal qualities of edges in painting. Within my own work, the edge becomes a tool that delineates one shape from another. Since my own paintings do not use atmospheric or linear perspective to achieve depth, the edges become vital.