BACK TO SCHOOL DOODLES Handdrawn clip art + 3 COPYBOOK DIGITAL PAPER Backgrounds. This set includes 101 PNG files, high resolution, 300 dpi, in black pen style on transparent background, and 3 background papers, high resolution, 300 dpi, 12x12 inches, similar to classic copybook papers.Graphics include speech and thought bubbles, arrows, badges, interrogative and exclamatory signs, ABC letters, 123 numbers, planets, moon, sun, clouds, rain, snow, glasses, light bulbs, check marks, crosses, math