What is the narrator point of view in the nonfiction book, Half the Sky?

Half the Sky by Kristof and DuWunn is written in the first person by the authors who not only wrote the book but “lived” much of it too. There would be no other individuals more qualified that Kristof and DuWunn to relate their experiences and express the feelings and opinions that results from their journeys. The authors rely on statistics that they quote and provide resources for as well as empirical evidence that they have amassed themselves.