 Schools that teach this method include The Water Street Atelier and The Swedish Academy of Realist Art.In his essay, "The Sight-size Method and its Disadvantages", the painter and instructor Hans-Peter Szameit, of the Swedish Academy of Realist Art, discusses the disadvantages of sight-size, describing it as essentially the making of a mechanically produced image limited to one size, the "sight size".Another traditional atelier method incorporates the use of illusions that fool the viewer into believing an image is accurate.