Ключевые слова: abstract, advertising, backdrop, billboard, black, blackboard, blank, board, border, chalk, chalkboard, classroom, close, college, concept, copy, copyspace, dirty, distressed, drawing, education, empty, flower, frame, gray, grunge, holiday, horizontal, learn, lesson, menu, message, old, school, sign, space, surface, teach, texture, textured, wall, women, wood, wooden, write,