Ключевые слова: abstract, address, business, cartoon, communication, concept, contact, correspondence, design, document, element, email, envelope, flat, fold, folded, graphic, icon, illustration, information, internet, isolated, label, letter, line, logo, mail, message, newsletter, object, office, open, outline, paper, post, postage, postal, receive, send, shape, sign, simple, symbol, template, transportation, v, web, website, white,