in the elevator and on a classroom sign
You can find braille in many public places. On restroom signs, and door signs, either for the room number, name of room (in a school: office, student services, etc), or even to say push or pull on the door. Braille isn't everywhere but if you look closely you may find it in public places, schools, and work places.
You can find braille in various places in Pokémon Ruby, such as the ancient tomb on route 120. You can easily translate the braille by looking up the braille alphabet.
It is a law that braille is in public places. Without it, blind people would be virtually lost.
People use Braille at school, in libraries, at work, or anywhere they can access Braille as a tool for communication.
About 150 million people use Braille today.
You cannot find a Braille decoder sheet in any of the Pokemon games. Braille is very simply and easy to translate if you print off a Braille alphabet sheet for reference.
Using a braille chart, you can match up the braille with their corresponding letters to find out what they mean. Here is a braille chart: http://en.wikipedia.org/wiki/Braille
Elevators.
Well honey, you can find Braille in places like elevators, ATMs, bathroom signs, library books, and even on some packaging. It's also commonly found on restaurant menus, in museums, on medication labels, and at train stations. Basically, if you can touch it, Braille might be there to help out our visually impaired friends.
Go to wikipedia, they have a braille dictionary.
Braille can be found in many of the Pokémon games. You can easily find out what it means by looking up the Braille alphabet.
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.