Ключевые слова: abstract, background, blank, card, chaos, closed, color, colored, colour, communication, correspondence, delivering, delivery, design, disorganized, empty, envelope, greeting, invitation, letter, mail, mailing, many, mess, message, messy, note, object, office, paper, pattern, post, postage, postal, random, receive, scattered, send, sign, stacked, stationery, strewn, valentine, white,