What is the author's style in Evita: The Real Life of Eva Peron by Nicholas Fraser?

The authors do not relentlessly expose Evita's flaws. Instead, they report the details in a matter of fact way, warts and all. They defend Evita against rumors spread by her detractors, such as that she "slept her way to the top" and so on. But they also acknowledge that she was no saint, often acting selfishly and childishly. They point to her naivete in things political and how she did nothing to stop the tyranny of her husband's regime. To the contrary, she encouraged absolute obedience to him.