Ключевые слова: addresser, background, brown, business, c4, closed, color, communication, concept, copy, corporate, correspondence, deliver, delivering, delivery, design, document, envelope, finance, information, kraft, letter, mail, mailing, message, nobody, object, pack, package, paper, post, postal, receive, red, send, sender, service, shipment, simple, simplicity, space, stationery, text, top, transfer, transferring, view,