Ключевые слова: book, contour, decree, digital, document, education, file, format, guide, icon, illustration, instruction, internet, interpreter, isolated, knowledge, learning, library, line, linear, literature, love, medieval, notebook, notepad, open, outline, page, paper, parchment, reader, religion, romantic, screen, scroll, set, sign, symbol, technology, textbook, torah, translate, translation, user, vocabulary, web,