Ключевые слова: blind, blindness, book, braille, communicate, communication, disability, disabled, dots, education, finger, font, hand, handicap, handicapped, help, human, impaired, impairment, language, letter, literature, man, method, page, paper, point, read, relief, school, script, see, sense, sheet, sight, sign, social, symbol, system, text, touch, visual, visually, white,