Over a period of 30 years—the Rebbe, Rabbi Menachem M. Schneerson, of righteous memory—meticulously edited his talks for publication in what came to be the 39-volume set called Likkutei Sichot, covering the widest array of Torah subjects and the world at large. In this Sept. 17, 1977 photo, the Rebbe can be seen leaving his office and synagogue at 770 Eastern Parkway on a motzei Shabbat holding a volume of Likkutei Sichot. (Photo: Jewish Educational Media/Levi Freidin)