By this time, children are aware of their own experiences and enjoy seeing them reflected in books for people their age. Books that use humor to break with the social conventions that children are slowly picking up on.
Unlike what people usually think, there aren't many differences between children's and adult's humor because, as the famous children's book author Luis Pescetti states: "The only difference is the degree of complexity of the information and the rules that come into play; if it's a question of inverting or exaggerating something, for adults it will be more complex or abstract, or include facts that children don't have access to; but they aren't completely dissimilar." Consequently, the means and resources used to be funny are the same; they merely change as children get older.
Between 9 and 12 years old, children have relative autonomy within the family, although they still depend on their parents during this transition to adolescence. But they are aware of their own experiences and enjoy seeing them reflected in books for people their age. Books that use humor to break with the social conventions that children are slowly picking up on. It's a way to test the limits and discover their true personality. Take for example the popular series Diary of a Wimpy Kid. A 12 year old boy, who is an anti-hero and ordinary kid rolled into one, tells us how he faces the difficulties of everyday life. In the same vein, there is the very entertaining series about Tom Gates. The last installment is a diary about a boy who likes pizza, drawing pictures and watching television. Mixed with graphic art, he tells us about what happens in his daily life, such as his relationship with his apathetic teenage sister who spends the whole day on her mobile, an unsuccessful attempt to make a kite with his father, school life and his authoritarian teacher, always with a humorous edge that is absurd and exaggerated. We should also mention that the author scooped up the prestigious Roald Dahl prize for this series. Humor and the unexpected happenstances in Tom's life will surprise and delight readers in this age group.