Ключевые слова: alternative, background, blank, book, books, college, colorful, copy, device, different, ebook, education, elearning, electronic, ereader, flat, format, gadget, hobby, information, internet, knowledge, lay, learn, learning, library, light, literature, many, modern, nobody, object, online, read, reading, screen, smart, space, story, student, study, studying, technology, text, top, view, virtual, web, white,