What is the difference between volume 1 and volume 2 of Mein kampf a book written by Adolf Hitler?

Volume 1 of Mein Kampf was published in 1925 and outlines Hitler's autobiography, political ideology, and future plans. Volume 2, published in 1926, focuses more on Hitler's foreign policy aspirations and his views on race. Volume 2 also expands on the anti-Semitic themes introduced in Volume 1.