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