Ключевые слова: ancient, blur, blurry, book page, bookcase, bookshelf, bookstore, business, classic, college, concept, concepts, cover, document, education, group, hardcover, hardcover book, history, information, interior, knowledge, learn, library, library books, library room, literature, open book, public, read, reading a book, research, school, science, shelf, stack, store, student, study, text, textbook, training, university, wisdom, word, work, workplace, writing,