Ключевые слова: books, bookshelves, boy, boyhood, caucasian, child, childhood, closeup, education, educational, feet, floor, footwear, holding, indoors, information, interior, kid, knowledge, learn, learning, library, literature, male, modern, people, person, preadolescent, preteen, reading, research, school, schoolboy, schoolchild, schooling, schoolkid, selective focus, shelves, shoes, sitting, smiling, study, studying, wisdom,