We also read a lot of Richard Scarry books- some of them have nice little details in the pictures and loads of labels on things.
We do use Dr. Suess and P.D. Eastman as well.
I think the important thing is just to read together and that your LO chooses books she's interested in. We do library trips and Nick often wanders into the reference books for the older kids/adults. We've brought home books on 18th century tools with beautiful illustrations/descriptions, and last week it was the human anatomy as he wanted to know about bones. He LOVED seeing the pictures of the patellas, metacarpals and how they all interconnect.
Have fun! It's great that she's so eager to read!
