Ключевые слова: addresser, background, black, closed, color, colorful, communication, concept, copy, correspondence, deliver, delivering, delivery, design, envelope, information, invitation, letter, mail, mailing, message, nobody, object, one, packet, paper, pink, post, postal, receive, send, sender, service, shipment, simple, simplicity, single, space, stationery, text, top, transfer, transferring, view, vintage,