It’s back to school for the New York Times bestselling Cat when he steps in as a substitute teacher.    Cat is not pleased to be tapped as substitute teacher. Not only is it cutting into his naptime, but a roomful of kittens is a little . . . much . At school, Cat follows the lesson plan of music, building, and painting—only in gradually more mischief-making Cat style. By the end, Cat has learned a thing or two about inspiring others by being himself. But even more heart-melting and humorous is what these adorable kittens have learned from Cat. Read it for  back-to-school and year-rou nd—great as a holiday or year-end teacher's gift! “[A] heart warmer.” — The Wall Street Journal   ★  “Plenty to giggle over.” — Publishers Weekly  (starred review)  "Just purrfect.” — The Washington Post  "Clever . . . Droll."  — The Horn Book “Amusing . . . has much to offer."  — School Library Journal “Adorable. ”  —Common Sense Media