Petra Mayer writes: “As with all our summer polls, this one isn’t a straight-up popularity contest. (Otherwise it would have been nothing but 100 Mo Willems books—and we love Mo Willems, but that wouldn’t have been the most useful list.) Rather, it’s a curated list built from your recommendations and picks from our expert panel of judges—a fantastic group of authors, librarians, publishers and all-around book nerds. And instead of a ranked list, it’s grouped into categories that we hope will help you find just the right books for the kids in your life.”