Ключевые слова: abstract, analytics, application, background, booking, business, cell, communication, concept, consumption, creative, digital, double, drawing, electronic, email, entering, envelop, equipment, exposure, freelance, future, icon, info, information, internet, mail, man, message, multi, online, phone, relation, safety, sales, send, smart, social, spam, stats, symbol, tablet, talk, telephone, training, transaction, web, webinar, worker,