Ключевые слова: background, book, business, closeup, collection, college, colorful, concept, cover, culture, dictionary, education, educational, eyeglasses, focus, glasses, hardcover, heap, high, information, isolated, knowledge, learn, library, literature, many, object, open, page, paper, pile, reading, research, school, science, smart, stack, story, student, study, table, tall, text, textbook, tower, university, used, vintage, white, wisdom,