Nathan of Breslov (January 22, 1780 – December 20, 1844), also known as Reb Noson, born Nathan Sternhartz, was the chief disciple and scribe of Rebbe Nachman of Breslov, founder of the Breslov Hasidic dynasty. Reb Noson is credited with preserving, promoting and expanding the Breslov movement after the Rebbe's death. Rebbe Nachman himself said, "Were it not for Reb Noson, not a page of my writings would have remained." Source: Wikipedia (en)