You will need to have beat Team Rocket on Island 4
dotted hole is on the south side of six island. (the sapphire is in there) a little extra info: dotted hole does have braille in it.
Go to wikipedia, they have a braille dictionary.
nothing just read it!!
You cannot find a Braille book in Pokemon FireRed. You can however find the Braille alphabet to make notes from inside Mt.Ember. Mt.Ember can be found just north of Knot Island.
Using a braille chart. Heres one: http://omniglot.com/writing/braille.htm
it doesn't really matter. the point is, when you get to a door with braille around it, use cut
Braille can be found in Mt ember and dotted hole if you go to Mt ember you can find braille that teaches you each letter one by one.
Braille, there is no language called "regi" , regi are the three legendary rock Pokemon and regigigas.
The form of Braille used in FireRed and LeafGreen is a visual representation of the language of touch used by the blind. A braille chart can be used to decipher the messages in the Sealed and Island Caves.
you need to do the Pokemon league
By decoding the braille using a braille chart, which usually comes with the game, otherwise in Pokémon guidebooks. If you do not have access to any of the above visit http://en.wikipedia.org/wiki/Braille/
At the end of the safari zone there is a log cabin . go in there and talk to the man.