What is the author's style in Howl's Moving Castle by Diana Wynne Jones?

The language of this story is informal and simple. It is very easy to understand and much of the story is told through dialogue. The descriptive parts of this novel are vivid, with many adjectives. The author uses many humorous descriptions in this story, such as calling Howl a "slither outer." The nature of the language does change a little. When Sophie is still young, meek Sophie, the dialogue reflects her youth and timidity. However, when Sophie finds herself old and not quite so timid, she begins to speak like an elderly woman.