What is a form of written language for the blind?

A form of written language for the blind is Braille, which consists of raised dots arranged in specific patterns to represent letters, numbers, and punctuation. Developed by Louis Braille in the 19th century, it allows individuals who are visually impaired to read and write by feeling the dot patterns with their fingertips. Braille can be found on various materials, including books, signs, and labels, promoting accessibility and independence.