"Mr. Carillo is our A+ Custodian!" John Carillo, Dublin Elementary School's custodian, has a big job. He mops and sweeps, polishes and scrubs, changes lightbulbs, washes windows, fixes pipes, moves furniture, and more! The teachers, students, parents, and principal all count on Mr. Carillo, and he never lets them down. Now his early-bird helpers, Gracie and Zach, want to do something to show Mr. Carillo how important he is to them. But showing him how much they appreciate everything he does will take lots of planning, some hard work, and the help of everyone in the whole school! In her classic style Louise Borden brings to vivid focus one elementary school, the students and faculty who bring it to life, and the clever way they show Mr. Carillo he's their A+ custodian!