Ключевые слова: ancient, back, background, blue, book, bookshelf, bookstore, business, campus, collection, college, colorful, copy, cover, diary, dictionary, education, group, hardcover, homework, information, knowledge, law, learn, learning, leisure, library, literary, literature, old, open, page, paper, pile, read, school, science, shelf, space, stack, student, study, studying, table, text, textbook, university, vintage, wisdom, world books day,