There are several levels here:Most modern Jews, including Orthodox, Conservative and Reform Jews, follow the Torah as interpreted by thousands of years of commentators. We (I am one) have a huge volume of text surrounding the Torah, including the Prophets, the Writings, the Talmud, and the rabinnic tradition down to the present day.The Karaites broke off from the rest of the Jews over the issue of the Talmud. They have the Torah, Prophets and Writings, but they reject the past 2000 years of rabinnic development.The Ethiopian Jews (Falasha) also do not have the Talmud in their tradition, and they are missing other material. I know the least about them, except to note that Ethiopian Jews who have gone to Israel have generally adopted modern Judaism with little difficulty.The Samaritans separ