After one of the first classes, we explored the children's section of the library. We discovered our new favorite book, Yummy Yucky. It's one of several books by Leslie Patricelli (and we've loved every one so far!). The pictures are so cute and the text is great for both kiddos and parents.The overall theme of the series is opposites, as well as teaching behavior. Daniel loves them so much, I think we will soon be investing in our own copies.