I remember that I had a hard time figuring out a b from a d and a p from q and puzzling over the mystery of why a t wasn't as tall as an l. I flunked the 2nd grade and learned to read in the fourth grade summer when I discovered Tarzan in the library and my folks stopped reading the funnies to me. I discovered at last that there were books that were worth reading.
Even now folk will start laughing at a comic strip before I can find the first bubble.
I got a ticket for casting off a pier standing in front of a huge sign that said NO CASTING OFF PIER because I never saw it, or more exactly, that the letters never made any works because I don't see words unless I look at them with an intention to figure out what they say. It's great driving down the freeway cause I never hear any of the ads go off in my head from all the signs, but I often miss my turn.
Now I can read at a fair speed if I want, but I almost never do. I don't see words but I hear them. To me language is sound and it's beauty is in hearing the words. So when I read a book that was written by somebody with linguistic talent, I read aloud in my head, sounding out all the words, hearing them spoken out. With an interesting book I can and do read all day.