Ключевые слова: book, bookshelf, chemical, chemical structure, class, classroom, college, college education, communication, composition, computer, concept, data, desk, digital, document, education, education concept, floating, futuristic, homework, information, internet, knowledge, learn, learning, library, literature, male, man, mixedrace, network, note, notebook, one person, page, paper, pen, people, public event, read, reading, school, structure, student, study, studying, technology, textbook, university, web, writing, young adult,