What is the author's style in Storm Thief by Chris Wooding?

The narrator point of view is the third-person subjective or personal, in which the story is recounted in in the 'he, she, they, or it mode, but then diverts suddenly into the inner thoughts and feelings of the main characters. These point of views vary considerably throughout the book. The overall effect is that we have a third-person narrative, narrated by at least five characters, in which, each focus gives the reader an insight into that character's motivations and feelings.