Ключевые слова: abc, alphabet, alphabetical, art, background, body, cartoon, collection, communicate, communication, concept, day, deaf, disability, disabled, drawing, dumb, education, educational, etching, expressive, finger, fist, gesture, graphic, hand, handicap, help, human, icon, illustration, isolated, language, learn, letters, manual, motion, nonverbal, people, pointing, reading, school, sign, sketch, speak, teach, white, world,