What is the author's style in The First Man by Albert Camus?

The language of the novel is informal. Albert Camus mixes exposition with dialogue. The exposition discusses the overall setting and family dynamic of Jacques' family. It also discusses the inner-most thoughts of Jacques. When Camus wants the reader to see Jacques' private thoughts, he writes in long paragraphs of exposition that thoroughly detail Jacques' emotional journey. The exposition is written in a very informal way, except for a few passages when Camus constructs sentences in a very formal, literary tone.