Ключевые слова: address, addresser, background, blank, brown, closed, color, communication, concept, copy, correspondence, deliver, delivering, delivery, design, envelope, information, invitation, letter, mail, mailing, message, mock, mockup, nobody, object, paper, post, postal, receive, send, sender, service, shipment, simple, simplicity, space, stationery, template, text, top, transfer, transferring, up, view, white,