Ключевые слова: 30s, academic, back to school, book, bookshelf, boy, career, caucasian, cheerful, child, childhood, class, classmates, classroom, communication, cute, development, early learning, education, elementary, elementary school, female, gesture, girl, happy, hispanic, in a line, in a row, indoors, job, knowledge, learn, learning, lesson, librarian, library, male, mid adult, mixedrace, occupation, portrait, posing, positive, pretty, profession, pupil, school, schoolchild, smiling, standing, teacher, teaching, together, woman,