Ключевые слова: advertise, advertisement, announce, announcement, background, banner, black, board, chalk, chalkboard, class, concrete, copy, copyspace, creative, design, display, education, equipment, frame, gray, grey, home, indoor, interior, learing, marketing, material, media, message, note, notice, placard, reminder, school, sign, slogane, space, stationary, studying, teaching, template, tool, wall, writing,