What is the author's style in Journey to Topaz by Yoshiko Uchida?

The novel is written in concise, simple sentences with straightforward construction. Events are presented chronologically in a way that is easy to understand. Although the narrative is told from a third-person perspective, the narrative structure is very similar to what one would expect had the novel been narrated from the first-person point of view by the primary character, an eleven-year-old American girl.