[Gohan Ryu]

I wonder if mind-reading would be like reading a book - visualizing (or hearing) the words that are in someone else's head, even if the words are in another language and you don't understand what you are seeing/hearing.

Or would it be more that you feel their emotions and their thought process so you understand what they are feeling and the concept they wish to communicate, not necessarily the words they are thinking, so it wouldn't matter what language you speak. Like in the movie "Independance Day" - the alien links telepathically with the President - and even though they don't speak the same language the President just knew what the alien was thinking.