My best friend is dyslexic; game designers never think about the accessibility benefits added by voice-acting.
dsnettleton, via Reddit

listen i LOVE discovering relics of the past but i am not someone who can pay attention to a block of text on the screen for very long and i cannot see the words on my own tv screen very well. i wish all documents could have audio
émile, via Twitter

Reinforcing textual information with images and sounds can be useful for all players. But it is particularly valuable for people who have difficulty with reading – not just in terms of the reading itself, but also because being confronted with large blocks of text can actually often be so intimidating that the text is skipped entirely.

Best practice example: Aporkalypse
Best practice example: Rise Of The Tomb Raider (video)