07 21 2017 friday Rabbi Kalatsky gives a daily class on Jewish law as explained by Chofetz chaim in the Mishna Berura. The Mishnah Berurah is a work of halakha (Jewish law) by Rabbi Yisrael Meir Kagan (Poland, 1838–1933), also colloquially known by the name of another of his books, Chofetz Chaim Desirer of Life. His Mishnah Berurah is a commentary on Orach Chayim, the first section of the Shulchan Aruch which deals with laws of prayer, synagogue, Shabbat and holidays, summarizing the opinions of the Acharonim (post-Medieval rabbinic authorities) on that work. The Mishnah Berurah is traditionally printed in 6 volumes alongside selected other commentaries. The work provides simple and contemporary explanatory remarks and citations to daily aspects of halakha. It is widely used as a reference and has mostly supplanted the Chayei Adam and the Aruch HaShulchan as the primary authority on Jewish daily living among Ashkenazi Jews, particularly those closely associated with haredi yeshivas. The Mishnah Berurah is accompanied by additional in-depth glosses called Beur Halakha, a reference section called Shaar Hatziyun (these two were also written by the Chofetz Chaim), and additional commentaries called Beer Hagolah, Beer Heitev, and Shaarei Teshuvah