The National Library of Israel, formerly Jewish National and University Library, is the library dedicated to collecting the cultural treasures of Israel and of Jewish heritage. The library holds more than 5 million books, and is located on the Givat Ram campus of the Hebrew University of Jerusalem.

The National Library owns the world's largest collections of Hebraica and Judaica, and is the repository of many rare and unique manuscripts, books and artifacts.

The establishment of a Jewish National Library in Jerusalem was the brainchild of Joseph Chazanovitz. His idea was creating a "home for all works in all languages and literatures which have Jewish authors, even though they create in foreign cultures." Chazanovitz collected some 15,000 volumes which later became the core of the library. In 2014, the project for a new home of the Library in Jerusalem was unveiled. The 34,000 square meters building, designed by the Basel-based architecture firm Herzog & de Meuron, is scheduled for full completion in 2021.

The library's mission is to secure copies of all material published in Israel, in any language; all publications on the subject of Israel, the Land of Israel, Judaism and the Jewish people, published in any language, in any country in the world; and all material published in Hebrew or any of the languages spoken in the Jewish Diaspora (such as Yiddish and Ladino).

Among the library's special collections are the personal papers of hundreds of outstanding Jewish figures, the National Sound Archives, the Eran Laor Cartographic Collection, The Sidney Edelstein Collection (for the history of science) and numerous other collections of Hebraica and Judaica.

According to wikipedia