DS4 was obsessed with books from about age six months on. (I have an amusing anecdote that I've told here before about that and a daycare worker who just couldn't calm him when she worked with him.) We read to him a lot, and at 3.5, he started reading back. He's all about Captain Underpants and Ricky Ricotta right now. He would still rather have us read them to him than read them on his own, but he will spend an hour at a time leafing through them. He's going fast enough that I think it's unlikely he's actually reading, rather than just looking at the pictures, but I don't know for sure.
