I bought books for my 2 nephews, and my DD and DS. I hope my brother has been keeping up. I always look through my change and the books to see if they have them. I do have quite a few empy spots in the books for the Denver ones, since here in NJ, we are closer to Phila. and not that many make their way this far east. (at least that is my experience.) We are up to date on the Phila ones, though.