The Library Of Agudas Chassidei Chabad (also Chabad Library or Lubavitch library) is a research library

Research library

A research library is a library which contains an in-depth collection of material on one or several subjects . A research library will generally include primary sources as well as secondary sources...

 owned by Agudas Chasidei Chabad

Agudas Chasidei Chabad

Agudas Chassidei Chabad is the umbrella organization for the worldwide Chabad-Lubavitch movement. It administers three of the main Lubavitch offices: Machneh Israel, Merkos L'Inyonei Chinuch, and the Kehot Publication Society...

. It opened its reading room in 1992 and exhibition hall in 1994. The library is housed in the Lubavitch world headquarters at 770 Eastern Parkway

770 Eastern Parkway

770 Eastern Parkway is the street address of the central headquarters of the Chabad-Lubavitch Hasidic movement, located on Eastern Parkway in the Crown Heights section of Brooklyn, New York, in the United States of America...

 in Brooklyn

Brooklyn

Brooklyn is the most populous of New York City's five boroughs, with nearly 2.6 million residents, and the second-largest in area. Since 1896, Brooklyn has had the same boundaries as Kings County, which is now the most populous county in New York State and the second-most densely populated...

, NY, and is utilized by Chabad and general Judaic scholars and viewed by thousands of visitors each year.

Collection

The library is home to 250,000 books, mostly in Hebrew and Yiddish. Many are rare and unique to the library. More than 100,000 letters, artifacts and pictures belonging to, written by and for the rebbes of Chabad and their Hasidim

Hasidic Judaism

Hasidic Judaism or Hasidism, from the Hebrew —Ḥasidut in Sephardi, Chasidus in Ashkenazi, meaning "piety" , is a branch of Orthodox Judaism that promotes spirituality and joy through the popularisation and internalisation of Jewish mysticism as the fundamental aspects of the Jewish faith...

 complete the collection. Among the collection is the siddur

Siddur

A siddur is a Jewish prayer book, containing a set order of daily prayers. This article discusses how some of these prayers evolved, and how the siddur, as it is known today has developed...

 of the Baal Shem Tov, which is kept in a safe place and is only handled by the head librarian.