Ключевые слова: advertisement, back to school, background, black, black color, blackboard, blank, board, chalk, chalk art equipment, chalkboard visual aid, class, classroom, color image, communication, concept, copy space, design, dirty, education, empty, frame, grunge, horizontal, illustration, isolated, learning, menu, message, no people, old, oldfashioned, retro, retro style, rustic, school, sign, slate, slate rock, space, teaching, texture, textured, vintage, white, wood, wood material, wooden, write,