I didn't find this book by Base to be as much fun as some of his others, especially Animalia. Uno's garden starts out full of lots of animals and plants, but as people begin to build in the area, the flora and fauna slowly disappear, until there are none left, and only a city remains, which the people eventually abandon. However, nature has a way of bouncing back, and gradually the animals and plants make a comeback. This time, though, the people try to build in harmony with nature, and in balance with it, rather than overbuilding. Base works in some nifty math lessons here, with counting forwards, and backwards, and multiplication. Interested readers can try to find all the plants, animals, and buildings that are supposed to be in the picture. The artwork, of course, is detailed and colorful, with touches of humor. Frankly, those Tumbletops are so cute, I'd like to have a few myself! The environmental lesson here is clear--if you destroy the habitat, you destroy the plants and animals--and some never come back. Poor Snortlepig! Kids will love this one, and I'm sure math teachers will too!