Even though it was hot and muggy on May 22 in New York City, it was crisp and autumnal inside the HarperCollins Children’s Books fall 2013 preview event, where librarians and reviewers were treated to a delicious spread of breakfast and books that were laid out in tempting piles of frosting, nuts, and glittery covers. From brightly colored picture books to edgy YA, there was something for every age, type, and stripe of reader. Here are some of the highlights.