Grosset and Dunlap 2003
It is the first day of fourth grade and the teacher wants the students to write a five paragraph essay on what they did during the summer. Hank is terrified. Writing (and reading) is not one of his best subjects. Hank comes up with a plan to show what he did. His 'living essay' becomes a disaster when he tries to show and tell about his trip to Niagara Falls. He gets detention. Luckily he gets detention with Mr. Rock, the music teacher. Mr. Rock suspects Hank has learning problems and suggests that he be tested.
In addition to the books in this series being extremely humorous, they teach about kids with learning disabilities. And they show how kids like Hank can work through difficulties and overcome obstacles they have in everyday life.
Additional info: Henry Winkler is dyslexic and was not diagnosed until he was an adult.