I'm reading a book on Albert Speer, Hitler's Minister for Armaments and prior to the war, Hitler's personal architect. It's a biography which gives a really in depth coverage of Speer's time in the Reich and a thorough account of the situations that he found himself in day to day, working under the Fuhrer. The book also explores the mindset of Speer during his time as Hitler's close aide and during his later years after his time in prison. A curious point to pull out of the book is that while he denied all knowledge of the industrialised killing of millions of Jews, the slaughter of millions of soviets and the extermination of gypsies, he knew that he was using slave labour to construct many of his most grand works. It is for this that he received 20 years in prison and avoided the firing squad after the war ended.
the book is: Albert Speer - His Battle With Truth. Available on Amazon.