What is the narrator point of view in the novel, Zuckerman Unbound?

Although the narration of the novel is written in the third person, the narration is limited specifically to Zuckerman’s thoughts and experiences. The narration never conveys information that Zuckerman himself does not possess. All interactions are described through Zuckerman’s perspective, and the third-person narration functions as a way of placing one degree of separation between Zuckerman and the reader.