Ключевые слова: air, alphabet, blank, business, card, color, communication, computer, concepts, copying, correspondence, cutting, data, delivering, design, document, email, envelope, global, greeting, horizontal, icon, ideas, image, isolated, letter, mail, office, outline, package, page, paper, pattern, postage, postcard, receiving, rubber, send, service, sign, space, speech, stamp, symbol, text, textured, white, writing,