Ramona Quimby is sure fourth grade will be "the best year of her life, so far." She can show off her calluses from swinging on the rings in the park, sit across the aisle from the boy she calls Yard Ape, and enjoy her cheerful new teacher, Mrs. Meacham. Most exciting of all, Ramona has a new best friend, Daisy.
Fourth grade doesn't turn out quite the way Ramona has hoped. Mrs. Meacham wants her to improve her spelling. Ramona also must be a good role model for her baby sister, Roberta. And Mrs. Quimby wants her to spend more time with, the super-perfect Susan. Fourth-grade life isn't always easy, but it's full of adventure, and at the end of it all- a "zeroteenth" birthday to celebrate!