This Is Not a Cat by David LaRochelle; Mike Wohnoutka (Illustrator)
Welcome to Sunny Hills Mice School where the first lesson is recognizing DANGER! And that means CAT. So Miss Mouse shows her students pictures of things that are, and are not, a kitty. But the kids are a bit restless . . . until something enters the classroom that makes them all sCATter. But, is their unwelcome guest really a cat?