Do you have any books in Braille?
We do not have any books in Braille here at COM. I would suggest contacting some of our local public libraries.
If you search WorldCat (Link below) using the keyword 'braille', there are 9 titles, 2 of which might be relevant. One is a biography of Louis Braille (eBook), another is "The directory of signs & signals", which we have in our collection, with some information about Braille.