Please help me to write a paragh about braille.

Braille is a method that is used by blind people to read and write. Each braille character or cell is made up of six dot positions, arranged in a rectangle containing two columns of three dots each. The braille system was based on a method of communication. Although it is possible to transcribe braille by simply substituting the equivalent braille character for its printed equivalent, such a character-by-character transcription is used only by beginners.