What is the author's style in Tisha: The Story of a Young Teacher in the Alaska Wilderness by Robert Specht?

Tisha is the story of Anne Hobbs. Even though the book is written by Robert Specht, it is the story that Anne Hobbs told and is written from her perspective. The book is written in the first person with the author being the narrator, with Anne speaking through him. Usually the use of the first person is limiting to the reader because the knowledge of the reader is confined to events that take place in front of the storyteller. The reader has no knowledge of any action that occurs away from the story teller, in this case Anne, but in this kind of novel, it works. The reader doesn't lose anything because it is Anne telling the story as it happened in front of her and to her.