{{Infobox library | library_name = Library Of Agudas Chassidei Chabad | library_logo = [[File:ספריית חבד.JPG|200px|Library Of Agudas Chassidei Chabad]] | type = Research library in Brooklyn, NY, owned by Agudas Chasidei Chabad | established = 1940 | ref_legal_mandate = | num_branches = | items_collected = books, letters, e-books, music, cds, periodicals, maps, genealogical archives, business directories, local history, | collection_size = 250,000 books | criteria = Jewish literature, history, | legal_deposit = | annual_circulation = | budget = | director = | num_employees = | website = Chabad Library Website }} The Library Of Agudas Chassidei Chabad (also Chabad Library or Lubavitch library) is a research library owned by Agudas Chasidei Chabad. Its content had been collected by the Chabad-Lubavitch Rebbes. The library is housed next to the Lubavitch world headquarters at 770 Eastern Parkway in Brooklyn, New York, and is utilized by Chabad and general Judaic scholars. It is viewed by thousands of visitors each year. The library is home to 250,000 books, mostly in Hebrew and Yiddish. Many are rare and unique to the library. In addition, the library contains: Several thousand manuscripts, mostly on Chabad Chasidic philosophy, either actual manuscripts of the Chabad Rebbe's, or copied by Chasidim for their own study and inspiration. A large archive of correspondence and writings relating to the Chabad philosophy and movement, including the vast collection of letters written by Rabbi Yosef Yitzchak Schneersohn, the sixth Lubavitcher Rebbe. A collection of sacred objects bequeathed by the Chabad Rebbes, as well as various items presented, as gifts, to the Lubavitcher Rebbe, Rabbi Menachem M. Schneerson, during his years of leadership. A collection of photographs of Chasidim and Chabad activities sent to Rabbi Yosef Yitzchak and Rabbi Menachem Mendel, during their years of leadership. A large collection of news clippings relating to the Chabad movement and Jewry in general. The library also contains more than 100,000 letters, artifacts, and pictures belonging to, written by and for the rebbes of Chabad and their Hasidim complete the collection. Notable among the collection is the siddur of the Baal Shem Tov, which is kept in a locked safe and is only handled by the head librarian. History Following a court case regarding ownership of the library in 1987, it greatly expanded. In 1992 it opened its reading room, and exhibition hall in 1994. Throughout the history of the Chabad movement, a central collection of books and