My DD (2yrs) at the moment like to look at the pictures in a book and talk about them, and doesn't have much time for the story if there is too many words on the page.

However my niece (3yrs) is through that stage, and will now sit still to read a full story where there is lots of words on each page.

When I buy books for any kids, I look for good pictures that have a lot of colour, so you can talk about it easily, or a character that is fun. If it is a book without many words, if they are repeated or rhymed, I find it makes it easier for the kids to get into it...

Good luck!