The Talmud consists of 63 tractates, which can be divided into two main sections: the Mishnah and the Gemara. The Mishnah is the foundational text, compiling oral laws, while the Gemara provides commentary and analysis on the Mishnah. It’s important to note that the Talmud comes in two versions: the Babylonian Talmud and the Jerusalem Talmud; the former is more widely studied and has more tractates.