Ключевые слова: 20s, academic, background, book, books, caucasian, college, concentrate, concentration, desk, education, female, indoors, information, institute, institution, knowledge, learn, learning, library, literature, looking, looking at camera, looking away, male, man, pages, read, reading, research, sitting, smile, smiling, students, study, studying, table, university, woman, work, working, young adult,