Ключевые слова: answer, bill, business, businessman, card, closeup, communication, concept, contract, corporate, correspondence, delivery, desk, education, employee, envelope, executive, feedback, focused, hands, holding, invoice, job, letter, mail, male, man, message, news, note, notification, office, official, open, paper, paperwork, people, person, post, postage, professional, read, receive, refund, sheet, student, table, work, worker, young,