Fundamental Ideas of Judaism given by Rabbi Yosef Rosenholtz. Rabbi Yosef Rosenholtz is a Maggid Shiur and lecturer in the Wesley Hills community in Monsey, NY. He is a talmud of Rav Henoch Leibowitz z"tl of Yeshiva Chofetz Chaim in Queens, NY, and is also a talmud of his father, Rabbi Eliyahu Rosenholtz z"l, who studied in the Baranovitch Yeshiva of Rav Elchonon Wasserman z"tl, and was  a talmud of Rav Dovid Leibowitz z"tl, a nephew of the Chofetz Chaim, who had been the Rosh Kollel of the Slabodka Yeshiva of the Alter of Slabodka, and was the founder of the Chofetz Chaim Yeshiva.