A.J. and his classmates are convinced that the new school librarian, Mrs. Roopy, has multiple personality disorder because she keeps pretending to be famous people.

"A.J. and his friends have the chance to win a trip to Dizzyland--if they can finish 5,000 books first. Dr. Carbles, the evil president of the Board of Education, doesn't think they can do it. But the Ella Mentry School kids are nothing if not determined! Will they achieve their theme park dreams? Or does Dr. Carbles have other plans for the school?"--

On Career Day at Ella Mentry School, local reporter Mrs. Lilly helps A.J. and his fellow third-graders start a school newspaper, but their efforts have unexpected, and terrible, consequences.

"A. J. and his friends have the weirdest Easter in the history of the world when Mayor Hubble hosts an egg hunt at the mayor's mansion"--

Miss Daisy's unusual teaching methods surprise her second grade students, especially reluctant learner A.J.

A.J. thinks that nothing can possibly be as boring as a sleepover in the natural history museum. But anything can happen when Ms. Krup is in charge. The tour guide says that dinosaur skeletons come to life in the middle of the night. Is she right?

"For A. J. and the gang from Ella Mentry School, a night of regular trick-or-treating turns into the weirdest Halloween in the history of the universe"--

Ella Mentry is having a fund-raiser, and guess who's in charge? Alexia's mom, Ms. Sue! The school's selling everything from popcorn to goldfish to raise money for a new playground. But when happens when Ms. Sue crosses the line? Someone's going to end up in the big house! -- Back cover.

Ella Mentary School is having a science fair! Guest scientist Dr. Snow has arrived to help A.J. and his friends conduct their own cool experiments. But what is "the snowman" really planning? And what does STEM even stand for anyway?

A.J. and his friends in the second grade learn that art can be made out of anything, even garbage.