What point of view is this written in?
Art Spiegelman's amazing books Maus I and Maus II are biographical graphic novels retelling the story of his parents, Vladek and Anja, survivors of the Holocaust. A graphic novel is a long-form comic book. This genre uses visual tropes familiar to comic books in innovative ways, so that difficult or controversial subject matter can be approached from a new angle. Maus is a great example of the power that this genre can have to offer alternative, innovative interpretations on a theme. Spiegelman uses the visual metaphors of cats and mice to represent the Nazis and the Jewish citizens who were persecuted and put to death.
The best way to answer your question is to imagine the book as a traditionally written biography, and to rephrase the question as "Who is telling the story?" Is there a specific narrator's voice, which would indicate a first-person point of view? Or, is the story being told from an omniscient, all-knowing, third-person point of view? While most traditional comics are in third-person, most memoirs are in first-person.