This is an excellent introduction to a character on the autism spectrum for elementary students. Bat is a little more quirky than most third graders, but is portrayed in a sympathetic way that will help young readers understand that it's okay when their classmates aren't exactly like them. Bat's interest in the skunk is far more interesting than his autism, but the intersection of these two facets does a good job of showing his difficulties in making friends with Israel.
There is a lot of information about how to care for baby skunks, but I appreciated that Bat knows that he won't be able to keep the animal once it is older. The character of Dr. Dragoo, the skunk expert, is a real person, and he does not think it is a good idea for skunks to be household pets. Still, many young people are curious about wild animal babies, and this book strikes a nice balance when it comes to wanting to have a pet versus not being able to keep the animal forever.
Arnold, who also wrote Far From Fair, does a good job at portraying tough situations in a hopeful way. Hand this to young readers who enjoy Linda Urban's Weekends with Max and His Dad, Harley's Charlie Bumpers series, or Meyerhoff's Friendship Garden series. While a bit young for middle school, this is an necessary purchase for elementary readers.