<em>"Realism, sometimes called naturalism, in the arts is generally the attempt to represent subject matter truthfully, without artificiality and avoiding speculative fiction and supernatural elements. Realism has been prevalent in the arts at many periods, and can be in large part a matter of technique and training, and the avoidance of stylization."</em>
Linear perspective, a system of creating an illusion of depth on a flat surface. All parallel lines (orthogonals) in a painting or drawing using this system converge in a single vanishing point on the composition's horizon line.
