Rabbi Michoel Seligson, a descendant of the Alter Rebbe, Rabbi Schneur Zalman of Liadi, is a Chassidic scholar and the author of a number of works relating to Chassidic thought and practice. His most recent publication "Sefer Hamaftechos L'Sichos Kodeshis" is a comprehensive index of the spoken words of the Lubavitcher Rebbe. It is an encyclopedic work spanning 63 years. As a popular lecturer, Rabbi Seligson has served as a scholar in residence for Chabad institutions in the United States and worldwide. He resides in Brooklyn, N.Y., where he is a teacher and mentor to hundreds of young men and women.