Ключевые слова: audio book, back to school, background, book, bookmark, bookstore, boy, cartoon, character, child, children, college, colorful, concept, design, diary, dictionary, education, flat, icon, imagination, isolated, kid, knowledge, learn, learning, library, literature, minimal, modern, notebook, novel, open, open book, paper, people, person, poster, read, reader, reading, school, science, story, student, study, symbol, textbook, white,