Ключевые слова: adult, backgrounds, book, bookshelf, business, closeup, collection, concepts, culture, dictionary, document, education, expertise, eye, glasses, ideas, instrument, law, learning, lens, library, lifestyles, literature, medicine, novel, object, old, oldfashioned, open, optical, page, paper, people, reading, research, retro, school, science, senior, shelf, student, study, studying, table, text, textbook, university, wisdom, woman,