What is the author's style in A Single Shard by Linda Sue Park?

The language of the novel is simple English that is aimed at young readers. The language of this novel contains a few Korean words that the reader will not recognize but are explained by their use in the novel. For example, the word jiggeh is used to describe a backpack type contraption that Tree-ear uses to carry vases to Songdo. This word is not literally defined in the novel but its use makes it clear to the reader what it is supposed to mean. There are a few other words in the novel that are also of the Korean language, but each of these words are carefully defined in their use.