Ключевые слова: abstract, advertisement, advertising, alte, background, billboard, black, blackboard, blank, board, chalk, chalkboard, close, closeup, communication, concept, copy, design, dirty, drawing, education, empty, frame, grunge, grungy, horizontal, learning, lesson, macro, message, nobody, notice, noticeboard, photograph, rubbed, smudged, space, surface, text, textured, textures, used, white, write,