Ключевые слова: article, black and white, book, books, business, catalogue, closeup, cover, dictionary, document, e book, education, educational, encyclopedia, information, intellectual, isolated, justice, knowledge, large, law, laws, learn, leaves, library, literature, object, office, open, opened, page, pages, paper, print, publication, read, reads, research, school, science, sheet, storybook, study, teaching, text, textbook, university,