Ключевые слова: address, air, background, black, blank, business, card, color, communication, concept, copy, correspondence, data, delivery, design, document, email, empty, envelope, gray, green, icon, image, information, isolated, letter, mail, message, office, package, page, paper, pastel, pattern, post, postage, postcard, receive, send, service, sign, space, stamp, stationery, symbol, texture, white, writing,