In the author’s note, Jon Krakauer tells the reader that he is not an “impartial biographer” and explains that he has included autobiographical information throughout the book. How does inclusion of this material help us understand McCandless?

John Krakauer saw many similarities between himself and Chris. By including notes about his own life, Krakauer is able to draw similarities between his own life, and his motivations for writing the book, with Chris's life. The narrative hence becomes a personal recognition of the Chris's personality type, the ever exploring searching soul. Check out this GradeSaver link about their respective fathers.

http://www.gradesaver.com/into-the-wild/q-and-a/how-did-chris-mccandless-and-jon-krakauers-fathers-age-differently-46989/