Ключевые слова: abstract, background, bible, blank, book, books, bookstore, collection, cover, design, dictionary, digital, document, education, element, encyclopedia, graphic, icon, illustration, information, isolated, knowledge, learning, library, literature, magazine, notebook, novel, object, open, page, paper, pictogram, publication, read, reading, school, science, set, sign, silhouette, study, symbol, text, textbook, university, web,