Horrid Henry is a collection of funny short stories about Henry, a mischievous boy who constantly gets into trouble at school and at home. He dislikes rules, homework, and anything that stops him from doing what he wants.
Each story shows Henry trying to outsmart adults, especially his parents and his younger brother Perfect Peter, who always behaves well. However, Henrys plans often go wrong, leading to humorous consequences.
The book is light, entertaining, and written in a simple style, making it easy for young readers to follow.