Question: What position in Nazi Germany did the author of Inside the Third Reich have?

Context articles: The Third Reich Trilogy
Nazi Germany
Feindsender
Inside the Third Reich (film)
Fourth Reich
David Irving
Mass suicides in 1945 Nazi Germany
Inside the Third Reich
Sicherheitsdienst
Albert Speer

The Third Reich Trilogy is a series of three narrative history books by the British historian Richard J. Evans covering the rise and collapse of Nazi Germany in detail, with a focus on the internal politics and the decision-making process.
 According to Ian Kershaw, it is "the most comprehensive history in any language of the disastrous epoch of the Third Reich", which has been hailed as a "masterpiece of historical scholarship."
 The three volumes of the trilogy were published between 2003 and 2008.
Nazi Germany is the common English name for the period in German history from 1933 to 1945, when Germany was governed by a dictatorship under the control of Adolf Hitler and the Nazi Party (NSDAP).
 Under Hitler's rule, Germany was transformed into a totalitarian state in which the Nazi Party controlled nearly all aspects of life.
 The official name of the state was "Deutsches Reich" from 1933 to 1943 and "Großdeutsches Reich" ("Greater German Reich") from 1943 to 1945.
 The period is also known under the names the Third Reich (German: "Drittes Reich" ) and the National Socialist Period (German: "Zeit des Nationalsozialismus" , abbreviated as "NS-Zeit").
 The Nazi regime came to an end after the Allied Powers defeated Germany in May 1945, ending World War II in Europe.
Feindsender (English: enemy-radio-station ) is a term used in Nazi Germany to describe programs produced by radio stations of the enemies of the German Reich before and during World War II, such as the United Kingdom or the United States, or by radio-stations inside Germany broadcasting material against the Nazi government.
 The term has not been in general use since the downfall of the Third Reich.
Inside the Third Reich is a 1982 television film based on the book "Inside the Third Reich" by Albert Speer.
 It was originally broadcast on network television by the American Broadcasting Company (ABC).
The Fourth Reich (German: "Viertes Reich" ) is a hypothetical future German empire that is the successor to Nazi Germany (1933–1945).
 The term Third Reich was coined by Arthur Moeller van den Bruck as the title of his 1923 book "Das Dritte Reich".
 It was used by the Nazis for propaganda purposes to legitimize their regime as a successor state to the retroactively-renamed First Reich (the Holy Roman Empire, 962–1806) and the Second Reich (Imperial Germany, 1871–1918).
 The terms "First Reich" and "Second Reich" were never used by historians.
David John Cawdell Irving (born 24 March 1938) is an English Holocaust denier and author who has written on the military and political history of World War II, with a focus on Nazi Germany.
 His works include "The Destruction of Dresden" (1963), "Hitler's War" (1977), "Churchill's War" (1987), and "Goebbels: Mastermind of the Third Reich" (1996).
 In his works, he argued that Hitler did not know of the extermination of Jews or, if he did, opposed it.
 Though Irving's revisionist views of World War II were never taken seriously by mainstream historians, he was once recognised for his knowledge of Nazi Germany and his ability to unearth new historical documents.
During the final weeks of the Third Reich and the war in Europe, many civilians, government officials and military personnel throughout Nazi Germany committed suicide.
 Aside from high-ranking Nazi officials like Adolf Hitler, Joseph Goebbels, Heinrich Himmler, Philipp Bouhler and Martin Bormann, many others chose " Selbstmord" (German: "Self-murder" ) rather than accept the defeat of Germany.
 Studies have shown that the suicides were influenced through Nazi propaganda (reaction to the suicide of Adolf Hitler), the tenets of the Nazi Party, and the anticipated reprisals following the Allied occupation of Nazi Germany.
 For example in April 1945, at least 1,000 people killed themselves and others within 72 hours as the Red Army neared the East German town of Demmin.
Inside the Third Reich (German: "Erinnerungen" , "Memories") is a memoir written by Albert Speer, the Nazi Minister of Armaments from 1942 to 1945, serving as Adolf Hitler's main architect before this period.
 It is considered to be one of the most detailed descriptions of the inner workings and leadership of Nazi Germany but is controversial because of Speer's lack of discussion of Nazi atrocities and questions regarding his degree of awareness or involvement with them.
 First published in 1969, it appeared in English translation in 1970.
Sicherheitsdienst (] , "Security Service"), full title Sicherheitsdienst des Reichsführers-SS (English: Security Service of the Reichsführer-SS ), or SD, was the intelligence agency of the SS and the Nazi Party in Nazi Germany.
 The organization was the first Nazi Party intelligence organization to be established and was considered a sister organization with the Gestapo , which the SS had infiltrated heavily after 1934.
 Between 1933 and 1939, the SD was administered as an independent SS office, after which it was transferred to the authority of the Reich Main Security Office ("Reichssicherheitshauptamt "; RSHA), as one of its seven departments/offices.
 Its first director, Reinhard Heydrich , intended for the SD to bring every single individual within the Third Reich's reach under "continuous supervision."
Berthold Konrad Hermann Albert Speer ( ; ] ; March 19, 1905 – September 1, 1981) was a German architect who was, for most of World War II, Reich Minister of Armaments and War Production for Nazi Germany.
 Speer was Adolf Hitler's chief architect before assuming ministerial office.
 As "the Nazi who said sorry", he accepted moral responsibility at the Nuremberg trials and in his memoirs for complicity in crimes of the Nazi regime, while insisting he had been ignorant of the Holocaust.