Ключевые слова: academic, adult, appearance, book, books, bookshelf, bookshelves, bookstore, caucasian, choice, choose, choosing, college, concentration, education, hand, holding, indoor, knowledge, learning, library, lifestyle, literature, looking, man, mature, old, one, pick, picking, professor, public, read, reading, research, researching, school, serious, shelf, standing, student, study, studying, teacher, teaching, textbook, university, view, working, years,