Ключевые слова: adult, book, bookshelf, brown hair, business, business person, businessman, businesswoman, casual clothing, caucasian ethnicity, confidence, cooperation, discussion, education, expertise, females, holding, indoors, learning, library, lifestyles, looking, males, mature adult, men, occupation, office, professional occupation, reading, real people, research, science, selective focus, shelf, smiling, standing, student, studying, success, suit, teamwork, technology, three quarter length, two people, waist up, women, working, young adult, young women,