What is the author's style in A Man Named Dave: A Story of Triumph and Forgiveness by Dave Pelzer?

Narrative makes up most of the story, with breaks in the narrative for dialogue at certain points. The lack of large portions of dialogue occurs because Pelzer himself avoids human contact through much of his life. In childhood, his mother prevents him from talking to others through isolation and abuse. This turns into a habit in adulthood, where Pelzer avoids going out socially or even seeking companionship. Only when Patsy fairly pushes herself on him does he develop a relationship with her.