Anne Frank's diary became a symbol of the Holocaust due to its poignant portrayal of life in hiding during World War II. Written while she and her family were in hiding from the Nazis, her diary details her thoughts, fears, and aspirations, providing a personal glimpse into the horrors of persecution. After the war, the diary was published as "The Diary of a Young Girl," resonating with readers worldwide. It serves as a powerful reminder of the human cost of war and antisemitism, symbolizing the resilience of the human spirit amid immense suffering and loss.