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A few years later, a Polish Rabbi, Moses Isserles, wrote a commentary on the Shulchan Aruch called the mappah (literally: "tablecloth"). Rabbi Isserles's commentary provided a summary of Jewish law as understood by Ashkenazi Jews.
Since 1578, copies of the Shulchan Aruch have almost always included Rabbi Isserles's commentary. Today, the name "Shulchan Aruch" usually means both Karo's work and Isserles's work together. This combined Shulchan Aruch is the most widely accepted book of practical Jewish law in the world.
- Codex Judaica, Mattis Kantor 2005
- "Caro, Joseph Ben Ephraim". Jewish Encyclopedia. (1901–1906).