Here's the NFB link:
$1I'd strongly suggest contacting someone who transcribes Braille professionally. You can ask what training they received, what effort was involved, and what they would recommend for someone just learning Braille. You could contact your local school for the blind or search LinkedIn for a Braille transcriber.
Also, here's a 2009 paper from the National Federation of the Blind (NFB) about Braille literacy:
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