Ключевые слова: abstract, audiobook, background, blank, book, bookmark, bookstore, cover, design, diary, dictionary, digital, document, education, element, encyclopedia, graphic, icon, illustration, information, isolated, knowledge, learning, library, literature, magazine, open, page, paper, pictogram, publication, publish, publishing, read, reading, school, science, shape, sign, silhouette, simple, studying, symbol, text, textbook,