remember there are three ways to create an image in three dimensions - overlap, chiaroscuro, and perspective.
Make a drawing of objects around the room, pile them on your table, for instance, that use all three to make an illusion of space. Use line and edge - do not shade and create the surface.
Make a drawing of objects around the room, pile them on your table, for instance, that use all three to make an illusion of space. Use line and edge - do not shade and create the surface.