Easy way to draw 3D on paperhow to draw, 3d art, trick art, 3d drawing, optical illusion, anamorphic art, trick art on paper, cool art, draw 3d building, circle line art, line paper trick art, line paper 3d, simple anamorphic drawing, simple illusion drawing, anamorphic illusion, tom mcpherson, Circle Line Art School, how to draw a 3D building, 3d building, pencil, 3d