Ключевые слова: 20s, academic, book, bookshelf, boy, career, casual clothing, caucasian, child, childhood, class, classmates, cute, development, digital tablet, early learning, education, elementary, elementary school, female, girl, happiness, indoors, job, knowledge, learn, learning, library, looking at camera, lying in front, male, mixedrace, multi ethnic group, occupation, preschool, profession, pupil, resting, school, schoolboy, schoolchild, schoolgirl, side by side, smiling, studying, tablet, tablet computer, tablet pc, teacher, teenager, using, woman, young adult,