This guide is the result of a survey of the world situation of the braille system undertaken with the aim of establishing world braille uniformity. Eighty-five countries are listed alphabetically, along with specific information about braille activities and braille codes. For each country, information provided includes the alphabet in braille notation, punctuation marks, mathematics notation, computer notation, music notation, and the name and address of the organization setting braille standards. The guide also contains a table relating the International Phonetic Alphabet to braille practice, a list of survey recipient organizations by country, a bibliography of almost 100 codebooks, and an index by language. (JDD)