What is the author's style in Berlin Diary; the Journal of a Foreign Correspondent, 1934-1941 by William L. Shirer?

The perspective of the book is that of the author, William L. Shirer. The book is written in the first-person point of view and is in diary form. The author was a European news correspondent who covered the events in Europe before and during the first few years of World War II. He watched as Hitler took country after country and traveled around to the different countries learning firsthand the situation and talking with various people. He lived in war-time Berlin without coal for heat and on food rations. Shirer gives a firsthand account of what life was like under these circumstances and what it was like dealing with the Nazis and their Propaganda Ministry.