Heinrich Mann was a prominent German novelist and social critic, known for his satirical and politically charged works. He was an early and vocal opponent of Nazism, which led to his exile from Germany in 1933. His most famous novel, Professor Unrat, was adapted into the classic 1930 film The Blue Angel, starring Marlene Dietrich. As the elder brother of fellow author Thomas Mann, his literary legacy is defined by its strong engagement with the social and political turmoil of his time.