Aaron Lansky is an American author and activist known for his work in preserving Yiddish literature. He founded the Yiddish Book Center in 1980, an organization dedicated to collecting and distributing Yiddish books and promoting the study of Yiddish language and culture. Lansky's efforts have helped save thousands of Yiddish titles from being lost or discarded. He has written several books, including Outwitting History, which recounts his experiences in the world of Yiddish literature and the importance of cultural preservation. His work has significantly contributed to the revival of interest in Yiddish heritage.