Leo Rosten was an American author, humorist, and educator, best known for his work in the field of Yiddish literature. Born on April 11, 1908, in Łódź, Poland, he immigrated to the United States as a child. Rosten's most famous work, "The Joys of Yiddish," explores the richness of the Yiddish language and culture, making it accessible to a wider audience. In addition to his literary contributions, Rosten was a prominent screenwriter and served as a professor at the University of California, Los Angeles. His writing often blended humor with insightful observations about life, making him a beloved figure in American literature until his death on February 19, 1997.