The Steipler

Widely known as the Steipler Gaon, Rabbi Yaakov Yisrael Kanievsky was a preeminent authority in the Israeli Haredi community. A brother-in-law of the *Chazon Ish*, he moved to Bnei Brak where he became a mentor for thousands, despite holding no formal position. His magnum opus, *Kehillos Yaakov*, is a series of profound and original discourses on various Talmudic subjects that are studied intensively in advanced yeshivas. He was considered a primary leader of the non-Hasidic world following the death of the *Chazon Ish*.