Mein Kampf (English: My Struggle or My Battle) is a book by Nazi leader Adolf Hitler. It combines elements of autobiography with an exposition of Hitler's political ideology. Volume 1 of Mein Kampf was published in 1925 and Volume 2 in 1926. The book was edited by the former Hieronymite friar Bernhard Stempfle who later died during the Night of the Long Knives.

Hitler began the dictation of the book while imprisoned for what he considered to be "political crimes" after his failed Putsch in Munich in November 1923. Though Hitler received many visitors earlier on, he soon devoted himself entirely to the book. As he continued, Hitler realized that it would have to be a two-volume work, with the first volume scheduled for release in early 1925. The prison governor of Landsberg noted at the time that "he [Hitler] hopes the book will run into many editions, thus enabling him to fulfil his financial obligations and to defray the expenses incurred at the time of his trial."

Hitler originally wanted to call his forthcoming book Viereinhalb Jahre (des Kampfes) gegen Lüge, Dummheit und Feigheit, or Four and a Half Years (of Struggle) Against Lies, Stupidity and Cowardice. Max Amann, head of the Franz Eher Verlag and Hitler's publisher, is said to have suggested the much shorter "Mein Kampf".

Adolf Hitler (German: [ˈadɔlf ˈhɪtlɐ] ( listen); 20 April 1889 – 30 April 1945) was an Austrian-born German politician and the leader of the National Socialist German Workers Party (German: Nationalsozialistische Deutsche Arbeiterpartei (NSDAP), commonly referred to as the Nazi Party). He was chancellor of Germany from 1933 to 1945 and dictator of Nazi Germany (as Führer und Reichskanzler) from 1934 to 1945. Hitler is commonly associated with the rise of fascism in Europe, World War II, and the Holocaust.

A decorated veteran of World War I, Hitler joined the German Workers' Party, precursor of the Nazi Party, in 1919, and became leader of the NSDAP in 1921. In 1923, he attempted a coup d'état, known as the Beer Hall Putsch, in Munich. The failed coup resulted in Hitler's imprisonment, during which time he wrote his memoir, Mein Kampf (My Struggle). After his release in 1924, Hitler gained popular support by attacking the Treaty of Versailles and promoting Pan-Germanism, antisemitism, and anticommunism with charismatic oratory and Nazi propaganda. After his appointment as chancellor in 1933, he transformed the Weimar Republic into the Third Reich, a single-party dictatorship based on the totalitarian and autocratic ideology of Nazism. His aim was to establish a New Order of absolute Nazi German hegemony in continental Europe.