Interesting watching you two amateur foresensic psychologists trying to unravel Hitler's mind.
You're not the only people who are fascinated by the question of who Hitler was and how he got to be that way.
You BOTH might find THE CASTLE IN THE FOREST by Norman Mailer worth your time. I read a few years ago and found it quite fascinating.
Here's what the Villiage Voice said of the work
Mailer accomplishes the counter-myth. Hitler is not a monster: Monsters aren't human, and hence aren't responsible for inhuman behavior. Mailer accepts this without letting Adolf off the hook. Nor does he neglect to acknowledge what is terra incognita. Everything in Hitler's life that Castle paints for us resonates with the sour music of chance, the Manichean flexibility of human will, and the mystery embedded in every creature.
Why read someone else's works/books on hitler? If you want to know Hitler you would read his work's/books and talk with the people who were alive when hitler was in power.
How about just because it's a good book?
It's not a history, it's a work of historical fiction.
But given that it delves into the psychology of Hitler, I thought I'd mention it for the benefit of people that seemed interested in that subject.