Rav BelskyRosh Yeshivah; renowned posek; av beis din; kashrus expert; mohel; sofer; shochet, musician, artist . And the list goes on. Rav Yisroel Belsky was all of these and much, much more. He was brilliant beyond description and was fluent not only in all of Torah but in the sciences and other fields of worldly knowledge and he applied that knowledge to Torah and psak halachah. As senior Posek for OU Kosher, his vast knowledge of Jewish law, combined with his