Ключевые слова: 20s, adult, adults, books, campus, casual, caucasian, class, classroom, college, copyspace, cropped, desk, diversity, education, ethnic, ethnicity, female, group, guy, happiness, happy, indoors, informal, inside, male, man, men, multicultural, multiethnic, multiracial, people, person, reading, scholar, school, serious, sitting, smile, smiling, student, students, study, thinking, university, woman, women, writing, young, youth,