Ключевые слова: background, black, blank, blue, book, business, clear, closeup, concept, cover, cutout, diary, dictionary, document, educate, education, expertise, eyeglasses, eyesight, glasses, information, intelligence, isolated, knowledge, learn, library, light, literature, open, page, paper, pile, read, research, school, science, spectacles, study, studying, text, textbook, university, white, wisdom, writing,