Ключевые слова: background, battery, book, book store, bookcase, bookshelf, bookshop, collection, culture, educate, education, hardcover, homework, information, international, knowledge, learn, learning, librarian, library, literacy, literary, literature, middle school, no people, old, read, reading, research, row, school, science, shelf, stack, study, studying, textbook, university, white, white background, wisdom, work, world book day, world literacy day,