Ключевые слова: abstract, app, background, banner, book, business, college, communication, computer, concept, course, design, digital, distance, education, elearning, flat, graduation, icon, idea, illustration, information, internet, knowledge, laptop, learn, learning, library, media, mobile, network, object, online, school, science, service, set, sign, social, student, study, symbol, tablet, teaching, technology, training, tutorial, university, web,