Ключевые слова: background, blank, book, closeup, collection, college, color, colorful, cover, culture, cutout, data, education, exam, group, hardcover, information, isolated, knowledge, learning, library, literacy, literature, long, lots, many, objects, order, page, paper, read, research, school, science, stack, study, tall, teach, text, textbook, tome, university, used, vertical, wisdom,