The Nation's Library of the Presidency (Turkish: Cumhurbaşkanlığı Millet Kütüphanesi), also commonly referred to as the Presidential Library, is the largest library in Turkey, with a collection of over four million books in 134 different languages, and 120 million articles and reports. The Presidential Library, which has the largest incipient collection in the world, was officially inaugurated by President Recep Tayyip Erdoğan on February 20, 2020. In addition to receiving a copy of materials printed in the country, as a depository library, the Presidential Library also receives books, in collaboration with the Foreign Ministry, from every country where Turkey has a diplomatic mission. It is home to the Dīwān Lughāt al-Turk, the first comprehensive dictionary of Turkic languages, compiled