Ключевые слова: abstract, ad, advertisement, advertising, announcement, background, billboard, black, blackboard, blank, board, bulletin, chalkboard, closeup, communication, design, dirty, distressed, dust, education, element, empty, erased, grunge, grungy, horizontal, learning, message, nobody, notice, noticeboard, school, scratched, smudged, space, surface, texture, textured, wall, writing,