The Bulgarian National Library, officially known as the St. Cyril and St. Methodius National Library, is the largest library in Bulgaria. Established in 1878, it serves as a key cultural institution, preserving the country's literary heritage and providing access to a vast collection of books, manuscripts, and periodicals. The library plays a crucial role in promoting research and education in the nation. Located in the capital city of Sofia, the library houses over 8 million items, including rare historical documents and works in various languages. It also offers various services, such as reading rooms, digital resources, and exhibitions, making it an essential resource for scholars and the public alike.