Neither by Airlie Anderson
Plot Summary: In the Land of This and That, there are only two kinds: blue bunnies and yellow birds. But one day a funny green egg hatches, and a little creature that's not quite a bird and not quite a bunny pops out. It's neither! Neither tries hard to fit in, but its bird legs aren't good for jumping like the other bunnies, and its fluffy tail isn't good for flapping like the other birds. It sets out to find a new home and discovers a very different place, one with endless colors and shapes and creatures of all kinds. But when a blue bunny and a yellow bird with some hidden differences of their own arrive, it's up to Neither to decide if they are welcome in the Land of All.
Youtube link:https://www.youtube.com/watch?v=QvB8gHvWmS4
This, that, rather, either, neither, both, somewhat… this book would be great for practicing vocabulary related to mixing and separating. In addition, the pictures tell more of the story than the words, visually representing the “this and that” with color and shape as well as expression. This is another book that could be viewed as an allegory for gender, but really it's about accepting difference.