What is the theme in Matilda by Roald Dahl?

Justice and revenge is another theme in the story. The notion that a person should get what they deserve is a common one, although in real life it does not always happen. Immoral behaviour often does lead to success, and good people who work hard lose their jobs. The most popular students in school are often the meanest, and cars who speed down the highway and cut people off usually do not crash. However, in a work of children's fiction like Matilda, it is possible for justice to be done. This is very satisfying for a reader, and it does teach the moral lesson that long-term success does often depend on making good choices. This novel explores the notion of justice and revenge in a light-hearted way, using Matilda's practical jokes to do so.