What is the name of the black-robed Jews who specialize in the practice of

The group of black-robed Jews who specialize in their practice is often called Hasidic. Hasidism is a sect within Judaism that emphasizes personal practice, fervent faith, and an inner connection to God. They usually wear black robes, hence the name Black Robe Jews. Black-robed Jews are also known by other names, such as Hasidim (Judaizers), Chasidim (Hasidic followers), and Hasidic Jews. Please note that Hasidic Jews are not a uniform group, and different regions and schools may have different traditions and customs.