This is one of Iona's absolute favorite books:
The Belly Button Book by Sandra Boynton.
I was going to post a pic, but alas, it's out of print!!
Iona laughs and laughs when we read this or other Boynton books. Be bo!!
We are super excited that Mo Willems has a new Elephant and Piggie book out, called Elephants Cannot Dance! We adore ALL of his books--Pigeon, Elephant and Piggie, Knuffle Bunny, Naked Mole Rat, and Leonardo are all part of our family. And Time to Pee! is a classic. :)