This is why I chose this book for my picture book activity.
For the activity, I would first read the books (obviously).
Afterwards we would discuss the book and some of it's lessons, like not judging book by its cover, and the fact that its okay to be silly sometimes. For our primary focus, we will talk about some of the adjectives and characteristics used to describe the monsters in this picture book
For this activity, I would have students use descriptive terms to write about their own monsters
Though it is not it's original purpose, I found a handout that would work perfectly for my activity.