I'm looking for suggestions of books that are aimed at learning about new babies, becoming an older sibling, etc. The Toddler Dudes are . . . shall we say . . . reluctant readers at best, so if anyone recommendations for ones that are particularly catchy, interactive, etc., that would be great, too. They're only 15 months, so things like Bernstein Bears-type books are a little ahead of where they're at right now.