What is the author's style in The Catcher in the Rye by J. D. Salinger?

The technique of the narration is a form known as "stream of consciousness." While the book proceeds in a rough chronological order, the events are related to the reader as Holden thinks of them. Wherever his mind wanders, the reader follows.

Notice how his language often appears to be more like that of a ten-year-old than that of a smart sixteen-year-old. This is a continuing demonstration of Holden's unwillingness to grow up and join the hypocritical adult world that he despises. Holden's conversation in the Wicker Bar with Luce demonstrates this reluctance aptly, when Luce expresses annoyance at Holden's immaturity.