Gra
1720-1797

Rabbi Eliyahu Ben Shlomo Zalman (1720-1797), also known as the Gra or Vilna Gaon, lived in Lithuania and was the foremost leader of the MIsnagdic Jewry. His notes on the Gemara and Shulchan Aruch are studied and analyzed by serious scholars around the world, and his customs are often considered the prevailing minhag among Ashkenazi Jews, regularly paskened by the Mishna Berura and others.
Both Kol Eliyahu and Divrei Eliyahu are posthumous compilations of his Torah insights. While many of the same ideas are in both works, Kol Eliyahu contains chiddushim interpreting pesukim, while Divrei Eliyahu will often contain more statements of ethics and homiletic remarks, and often will have deeper symbolic ideas based on gematria, the trop, or anagrams of words.