Meet Arvo. Now look at his family tree. Meet his cat, Malcolm, and check out Malcolm's family tree, too. Whether people or cats, buildings or books, food or vehicles, there's a category for everything. And in this mesmerizing narrative introduction to taxonomy, readers follow Arvo through his day to learn about the order of the animal kingdom, to his music lesson to help categorize instruments, and across town to classify cloud formations he sees...

Sorting by color, by shape, or by size there are lots of ways to group similar things together! How do you sort the objects in your world? What can you create by sorting? Bright and colorful photos encourage young readers to think about how they can sort the objects around them.

"Look at pictures to figure out what item is on top of another. Additional features to aid comprehension include detailed photographs, a visual answer key, a phonetic glossary, sources for further research, an index, and an introduction to the author"--Provided by the publisher.

Illustrates the concept of finding common characteristics between different things to form sets.