well i think it might be too late now, but i'm pretty sure she wasn't originally a historian..she wrote albert speers journals for him, and when they were needed as evidence in the trials, she altered them to get rid of any evidence that albert speer knew about the holocaust and stuff, so i think she was an assistant of his kinda, but then they had a falling out and she ended up disliking him and producing evidence after his death , with his original journals, that proved that he did if fact know all about what was happening to the jews and what not...and obviously from her experience, wrote the books she wrote and things..