Not only art teachers may have one to borrow, but any school teacher as well. See the librarian, now known as "media specialist." I'm not sure what "many speak of a small type" means, but the farther away from the projected image the machine is, the larger the image. Just scoot the machine back from the wall...maybe using extension cords. The most recent overhead projector we purchased at my school generated a lot of heat, of course I wanted to write on it, not project an image from a transparency.