Landsmål is a special kind of language that some people in Norway use to talk and write. It's like a different way of speaking and writing compared to the normal language called Bokmål. It was made a long time ago by a man named Ivar Aasen who wanted to create a language that was more like the way people actually spoke in the country. It uses words and spelling that are different from Bokmål, and some people think it's important to keep it alive and use it to show the uniqueness of Norwegian culture. So, it's kind of like a secret code that only certain people understand and use to communicate in a special way.