Ключевые слова: author, back to school, blackboard, blackboard visual aid, book, book fair, bookshelf, classroom, closeup, concept, copy space, desk, education, educational subject, emancipation, expertise, first steps, hardcover book, high key, home office, indoors, information medium, knowledge, law, learning, library, literature, open, open book, page, paper, printed media, reading, research, school, science, shelf, stack, study, studying, teaching, template, text, textbook, university, wisdom, working at home,