Butler Library is the main library of Columbia University, located in New York City. It was opened in 1934 and is known for its impressive architecture and extensive collection of books and resources. The library serves as a central hub for students and faculty, providing access to millions of volumes, study spaces, and research materials. The library features a grand reading room and various specialized collections, including rare books and manuscripts. It also offers digital resources and services to support academic research. Butler Library plays a vital role in the educational experience at Columbia University.