This book looks at how to help a child that may not be able to express what they are feelling.  Perm Worm likes his days to go in a certain way. Food at a certain time, seeing certain people at specific times during the day, so when his class gets a substitute, he has to learn new ways to express how he is feeling.  First off, this story is overly long.  Second, what is with Cough Moth and always slamming into the light.  It’s just odd.  Overall i can see this working for some kids, but not all.