Ключевые слова: 30s, adult, book, caucasian, clever, concentrate, concentration, data, document, educate, education, experience, female, focus, focusing, house, imagination, indoor, intelligence, knowledge, learn, learning, life, lifestyle, literacy, literature, look, looking, manual, mature, middle age, mom, mother, novel, paper, read, reading, relax, review, smart, story, style, technology, textbook, think, thinking, understanding, wisdom, woman,