Ключевые слова: antique, back, background, black, blank, blue, book, bookshelf, bookstore, brown, business, collection, college, concept, copy, cover, design, desk, document, education, empty, information, isolated, knowledge, learn, library, literature, nobody, old, open, page, paper, pile, read, retro, school, science, shelf, space, stack, study, table, text, textbook, university, vintage, white, wisdom, wooden, writing,