Ключевые слова: abstract, author, background, black, blank, business, businessman, closeup, communication, concepts, contract, corporate, correspondence, cutout, deal, document, drawing, education, finger, hand, handwriting, holding, homework, human, ideas, ink, isolated, letter, man, message, note, office, pad, paper, pen, pencil, person, sign, signature, studying, text, thumb, white, write,