Mo Willems and his Pig and Elephant books. I have to admit, I think they're just hilarious too. Here's a link to Mo's Pigeon Presents Web site, with links to some of the best books. We've got "Don't Let the Pigeon Drive the Schoolbus" on hold at the library now, and we can't wait to read it.
If you and your grandkids don't use the library yet, I highly recommend it, and the big secret to really enjoying it is the hold system. Our local library has a good Web site that lets us search for books and put them on hold. We'll find the ones we're looking for, and just wait for them to become available. It's let us enjoy so many books that we never could have before.
The 6-year-old mentioned last week that she'd like that new book by Dr. Seuss, "The Lorax." I actually remember this one from when I was a kid, so I explained to her that it wasn't new (she thought it was because of the movie coming out) but we put it on hold, and can't wait to read it this week.
Love, love, love the library.