Mercer Mayer’s Little Critter is having quite the grumpy day in this classic, funny, and heartwarming book. Whether he’s cranky on the slide or stubborn in

Mercer Mayer’s Little Critter is thinking about all the things he and his new little brother will do together in this classic, funny, and heartwarming book. W

Original publication and copyright date: 1988.

Learn your numbers with help from Little Critter and the zoo animals.